Home / 42,279.89-63,399.38-15,607.80

Finding the Fourth Proportional to 42,279.89, 63,399.38 and 15,607.80

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Solution

The fourth proportional to 42,279.89, 63,399.38 and 15,607.80 is: 23,404.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,279.89 : 63,399.38 = 15,607.80 : x
  2. Step 2: Convert to fraction form
    42,279.89/63,399.38 = 15,607.80/x
  3. Step 3: Cross multiply
    42,279.89x = 63,399.38 × 15,607.80
  4. Step 4: Simplify right side
    42,279.89x = 989,524,982.15
  5. Step 5: Solve for x
    x = 989,524,982.15/42,279.89
  6. Step 6: Final answer
    x = 23,404.15

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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.