Home / 42,279.64-63,399.00-15,607.55

Finding the Fourth Proportional to 42,279.64, 63,399.00 and 15,607.55

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Solution

The fourth proportional to 42,279.64, 63,399.00 and 15,607.55 is: 23,403.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,279.64 : 63,399.00 = 15,607.55 : x
  2. Step 2: Convert to fraction form
    42,279.64/63,399.00 = 15,607.55/x
  3. Step 3: Cross multiply
    42,279.64x = 63,399.00 × 15,607.55
  4. Step 4: Simplify right side
    42,279.64x = 989,503,279.48
  5. Step 5: Solve for x
    x = 989,503,279.48/42,279.64
  6. Step 6: Final answer
    x = 23,403.78

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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.