Home / 22,543.11-31,107.11-12,471.30

Finding the Fourth Proportional to 22,543.11, 31,107.11 and 12,471.30

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Solution

The fourth proportional to 22,543.11, 31,107.11 and 12,471.30 is: 17,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,543.11 : 31,107.11 = 12,471.30 : x
  2. Step 2: Convert to fraction form
    22,543.11/31,107.11 = 12,471.30/x
  3. Step 3: Cross multiply
    22,543.11x = 31,107.11 × 12,471.30
  4. Step 4: Simplify right side
    22,543.11x = 387,946,038.59
  5. Step 5: Solve for x
    x = 387,946,038.59/22,543.11
  6. Step 6: Final answer
    x = 17,209.07

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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.