Home / 42,330.60-63,467.10-20,154.60

Finding the Fourth Proportional to 42,330.60, 63,467.10 and 20,154.60

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Solution

The fourth proportional to 42,330.60, 63,467.10 and 20,154.60 is: 30,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,330.60 : 63,467.10 = 20,154.60 : x
  2. Step 2: Convert to fraction form
    42,330.60/63,467.10 = 20,154.60/x
  3. Step 3: Cross multiply
    42,330.60x = 63,467.10 × 20,154.60
  4. Step 4: Simplify right side
    42,330.60x = 1,279,154,013.66
  5. Step 5: Solve for x
    x = 1,279,154,013.66/42,330.60
  6. Step 6: Final answer
    x = 30,218.19

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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.