Home / 22,779.93-34,170.12-7,989.20

Finding the Fourth Proportional to 22,779.93, 34,170.12 and 7,989.20

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Solution

The fourth proportional to 22,779.93, 34,170.12 and 7,989.20 is: 11,983.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.93 : 34,170.12 = 7,989.20 : x
  2. Step 2: Convert to fraction form
    22,779.93/34,170.12 = 7,989.20/x
  3. Step 3: Cross multiply
    22,779.93x = 34,170.12 × 7,989.20
  4. Step 4: Simplify right side
    22,779.93x = 272,992,008.13
  5. Step 5: Solve for x
    x = 272,992,008.13/22,779.93
  6. Step 6: Final answer
    x = 11,983.88

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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.