Home / 28,646.97-39,535.20-15,901.35

Finding the Fourth Proportional to 28,646.97, 39,535.20 and 15,901.35

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Solution

The fourth proportional to 28,646.97, 39,535.20 and 15,901.35 is: 21,945.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.97 : 39,535.20 = 15,901.35 : x
  2. Step 2: Convert to fraction form
    28,646.97/39,535.20 = 15,901.35/x
  3. Step 3: Cross multiply
    28,646.97x = 39,535.20 × 15,901.35
  4. Step 4: Simplify right side
    28,646.97x = 628,663,052.52
  5. Step 5: Solve for x
    x = 628,663,052.52/28,646.97
  6. Step 6: Final answer
    x = 21,945.18

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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.