Home / 38,617.11-53,289.02-21,618.48

Finding the Fourth Proportional to 38,617.11, 53,289.02 and 21,618.48

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Solution

The fourth proportional to 38,617.11, 53,289.02 and 21,618.48 is: 29,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,617.11 : 53,289.02 = 21,618.48 : x
  2. Step 2: Convert to fraction form
    38,617.11/53,289.02 = 21,618.48/x
  3. Step 3: Cross multiply
    38,617.11x = 53,289.02 × 21,618.48
  4. Step 4: Simplify right side
    38,617.11x = 1,152,027,505.00
  5. Step 5: Solve for x
    x = 1,152,027,505.00/38,617.11
  6. Step 6: Final answer
    x = 29,832.05

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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.