Home / 36,491.50-54,753.72-20,909.13

Finding the Fourth Proportional to 36,491.50, 54,753.72 and 20,909.13

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Solution

The fourth proportional to 36,491.50, 54,753.72 and 20,909.13 is: 31,373.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,491.50 : 54,753.72 = 20,909.13 : x
  2. Step 2: Convert to fraction form
    36,491.50/54,753.72 = 20,909.13/x
  3. Step 3: Cross multiply
    36,491.50x = 54,753.72 × 20,909.13
  4. Step 4: Simplify right side
    36,491.50x = 1,144,852,649.46
  5. Step 5: Solve for x
    x = 1,144,852,649.46/36,491.50
  6. Step 6: Final answer
    x = 31,373.13

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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.