Home / 20,691.36-31,008.96-14,834.88

Finding the Fourth Proportional to 20,691.36, 31,008.96 and 14,834.88

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Solution

The fourth proportional to 20,691.36, 31,008.96 and 14,834.88 is: 22,232.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691.36 : 31,008.96 = 14,834.88 : x
  2. Step 2: Convert to fraction form
    20,691.36/31,008.96 = 14,834.88/x
  3. Step 3: Cross multiply
    20,691.36x = 31,008.96 × 14,834.88
  4. Step 4: Simplify right side
    20,691.36x = 460,014,200.52
  5. Step 5: Solve for x
    x = 460,014,200.52/20,691.36
  6. Step 6: Final answer
    x = 22,232.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.