Home / 31,125.72-42,951.77-17,695.12

Finding the Fourth Proportional to 31,125.72, 42,951.77 and 17,695.12

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Solution

The fourth proportional to 31,125.72, 42,951.77 and 17,695.12 is: 24,418.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125.72 : 42,951.77 = 17,695.12 : x
  2. Step 2: Convert to fraction form
    31,125.72/42,951.77 = 17,695.12/x
  3. Step 3: Cross multiply
    31,125.72x = 42,951.77 × 17,695.12
  4. Step 4: Simplify right side
    31,125.72x = 760,036,724.36
  5. Step 5: Solve for x
    x = 760,036,724.36/31,125.72
  6. Step 6: Final answer
    x = 24,418.29

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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.