Home / 31,125.20-42,951.10-17,694.60

Finding the Fourth Proportional to 31,125.20, 42,951.10 and 17,694.60

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Solution

The fourth proportional to 31,125.20, 42,951.10 and 17,694.60 is: 24,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125.20 : 42,951.10 = 17,694.60 : x
  2. Step 2: Convert to fraction form
    31,125.20/42,951.10 = 17,694.60/x
  3. Step 3: Cross multiply
    31,125.20x = 42,951.10 × 17,694.60
  4. Step 4: Simplify right side
    31,125.20x = 760,002,534.06
  5. Step 5: Solve for x
    x = 760,002,534.06/31,125.20
  6. Step 6: Final answer
    x = 24,417.60

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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.