Home / 38,430.11-53,025.49-23,330.72

Finding the Fourth Proportional to 38,430.11, 53,025.49 and 23,330.72

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Solution

The fourth proportional to 38,430.11, 53,025.49 and 23,330.72 is: 32,191.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,430.11 : 53,025.49 = 23,330.72 : x
  2. Step 2: Convert to fraction form
    38,430.11/53,025.49 = 23,330.72/x
  3. Step 3: Cross multiply
    38,430.11x = 53,025.49 × 23,330.72
  4. Step 4: Simplify right side
    38,430.11x = 1,237,123,021.78
  5. Step 5: Solve for x
    x = 1,237,123,021.78/38,430.11
  6. Step 6: Final answer
    x = 32,191.50

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Half scale
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Double scale
Find fourth proportional to 38,431.11, 53,026.87 and 23,331.72
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.