Home / 19,445.12-29,123.90-13,627.70

Finding the Fourth Proportional to 19,445.12, 29,123.90 and 13,627.70

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Solution

The fourth proportional to 19,445.12, 29,123.90 and 13,627.70 is: 20,410.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,445.12 : 29,123.90 = 13,627.70 : x
  2. Step 2: Convert to fraction form
    19,445.12/29,123.90 = 13,627.70/x
  3. Step 3: Cross multiply
    19,445.12x = 29,123.90 × 13,627.70
  4. Step 4: Simplify right side
    19,445.12x = 396,891,772.03
  5. Step 5: Solve for x
    x = 396,891,772.03/19,445.12
  6. Step 6: Final answer
    x = 20,410.87

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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.