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Finding the Fourth Proportional to 28,935, 39,932.76 and 16,362.18

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Solution

The fourth proportional to 28,935, 39,932.76 and 16,362.18 is: 22,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935 : 39,932.76 = 16,362.18 : x
  2. Step 2: Convert to fraction form
    28,935/39,932.76 = 16,362.18/x
  3. Step 3: Cross multiply
    28,935x = 39,932.76 × 16,362.18
  4. Step 4: Simplify right side
    28,935x = 653,387,007.02
  5. Step 5: Solve for x
    x = 653,387,007.02/28,935
  6. Step 6: Final answer
    x = 22,581.20

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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.