Home / 20,123.60-30,156.60-14,817.20

Finding the Fourth Proportional to 20,123.60, 30,156.60 and 14,817.20

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Solution

The fourth proportional to 20,123.60, 30,156.60 and 14,817.20 is: 22,204.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123.60 : 30,156.60 = 14,817.20 : x
  2. Step 2: Convert to fraction form
    20,123.60/30,156.60 = 14,817.20/x
  3. Step 3: Cross multiply
    20,123.60x = 30,156.60 × 14,817.20
  4. Step 4: Simplify right side
    20,123.60x = 446,836,373.52
  5. Step 5: Solve for x
    x = 446,836,373.52/20,123.60
  6. Step 6: Final answer
    x = 22,204.59

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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.