Home / 31,084.20-42,895.32-16,937.16

Finding the Fourth Proportional to 31,084.20, 42,895.32 and 16,937.16

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Solution

The fourth proportional to 31,084.20, 42,895.32 and 16,937.16 is: 23,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,084.20 : 42,895.32 = 16,937.16 : x
  2. Step 2: Convert to fraction form
    31,084.20/42,895.32 = 16,937.16/x
  3. Step 3: Cross multiply
    31,084.20x = 42,895.32 × 16,937.16
  4. Step 4: Simplify right side
    31,084.20x = 726,524,898.09
  5. Step 5: Solve for x
    x = 726,524,898.09/31,084.20
  6. Step 6: Final answer
    x = 23,372.80

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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.