Home / 28,398.32-39,187.52-16,463.28

Finding the Fourth Proportional to 28,398.32, 39,187.52 and 16,463.28

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Solution

The fourth proportional to 28,398.32, 39,187.52 and 16,463.28 is: 22,718.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.32 : 39,187.52 = 16,463.28 : x
  2. Step 2: Convert to fraction form
    28,398.32/39,187.52 = 16,463.28/x
  3. Step 3: Cross multiply
    28,398.32x = 39,187.52 × 16,463.28
  4. Step 4: Simplify right side
    28,398.32x = 645,155,114.27
  5. Step 5: Solve for x
    x = 645,155,114.27/28,398.32
  6. Step 6: Final answer
    x = 22,718.07

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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.