Home / 22,687.46-31,305.24-12,995.40

Finding the Fourth Proportional to 22,687.46, 31,305.24 and 12,995.40

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Solution

The fourth proportional to 22,687.46, 31,305.24 and 12,995.40 is: 17,931.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,687.46 : 31,305.24 = 12,995.40 : x
  2. Step 2: Convert to fraction form
    22,687.46/31,305.24 = 12,995.40/x
  3. Step 3: Cross multiply
    22,687.46x = 31,305.24 × 12,995.40
  4. Step 4: Simplify right side
    22,687.46x = 406,824,115.90
  5. Step 5: Solve for x
    x = 406,824,115.90/22,687.46
  6. Step 6: Final answer
    x = 17,931.68

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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.