Home / 20,010.60-29,951.10-14,178.60

Finding the Fourth Proportional to 20,010.60, 29,951.10 and 14,178.60

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Solution

The fourth proportional to 20,010.60, 29,951.10 and 14,178.60 is: 21,221.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.60 : 29,951.10 = 14,178.60 : x
  2. Step 2: Convert to fraction form
    20,010.60/29,951.10 = 14,178.60/x
  3. Step 3: Cross multiply
    20,010.60x = 29,951.10 × 14,178.60
  4. Step 4: Simplify right side
    20,010.60x = 424,664,666.46
  5. Step 5: Solve for x
    x = 424,664,666.46/20,010.60
  6. Step 6: Final answer
    x = 21,221.99

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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.