Home / 22,612.28-31,206.87-12,543.97

Finding the Fourth Proportional to 22,612.28, 31,206.87 and 12,543.97

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Solution

The fourth proportional to 22,612.28, 31,206.87 and 12,543.97 is: 17,311.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.28 : 31,206.87 = 12,543.97 : x
  2. Step 2: Convert to fraction form
    22,612.28/31,206.87 = 12,543.97/x
  3. Step 3: Cross multiply
    22,612.28x = 31,206.87 × 12,543.97
  4. Step 4: Simplify right side
    22,612.28x = 391,457,931.70
  5. Step 5: Solve for x
    x = 391,457,931.70/22,612.28
  6. Step 6: Final answer
    x = 17,311.74

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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.