Home / 38,419.91-53,017.83-28,344.72

Finding the Fourth Proportional to 38,419.91, 53,017.83 and 28,344.72

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Solution

The fourth proportional to 38,419.91, 53,017.83 and 28,344.72 is: 39,114.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,419.91 : 53,017.83 = 28,344.72 : x
  2. Step 2: Convert to fraction form
    38,419.91/53,017.83 = 28,344.72/x
  3. Step 3: Cross multiply
    38,419.91x = 53,017.83 × 28,344.72
  4. Step 4: Simplify right side
    38,419.91x = 1,502,775,546.36
  5. Step 5: Solve for x
    x = 1,502,775,546.36/38,419.91
  6. Step 6: Final answer
    x = 39,114.50

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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.