Home / 20,892.93-31,352.15-9,049.86

Finding the Fourth Proportional to 20,892.93, 31,352.15 and 9,049.86

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Solution

The fourth proportional to 20,892.93, 31,352.15 and 9,049.86 is: 13,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.93 : 31,352.15 = 9,049.86 : x
  2. Step 2: Convert to fraction form
    20,892.93/31,352.15 = 9,049.86/x
  3. Step 3: Cross multiply
    20,892.93x = 31,352.15 × 9,049.86
  4. Step 4: Simplify right side
    20,892.93x = 283,732,568.20
  5. Step 5: Solve for x
    x = 283,732,568.20/20,892.93
  6. Step 6: Final answer
    x = 13,580.31

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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.