Home / 20,375.61-30,557.19-14,090.88

Finding the Fourth Proportional to 20,375.61, 30,557.19 and 14,090.88

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Solution

The fourth proportional to 20,375.61, 30,557.19 and 14,090.88 is: 21,132.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.61 : 30,557.19 = 14,090.88 : x
  2. Step 2: Convert to fraction form
    20,375.61/30,557.19 = 14,090.88/x
  3. Step 3: Cross multiply
    20,375.61x = 30,557.19 × 14,090.88
  4. Step 4: Simplify right side
    20,375.61x = 430,577,697.43
  5. Step 5: Solve for x
    x = 430,577,697.43/20,375.61
  6. Step 6: Final answer
    x = 21,132.02

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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.