Home / 22,779.15-34,168.95-7,988.42

Finding the Fourth Proportional to 22,779.15, 34,168.95 and 7,988.42

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Solution

The fourth proportional to 22,779.15, 34,168.95 and 7,988.42 is: 11,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.15 : 34,168.95 = 7,988.42 : x
  2. Step 2: Convert to fraction form
    22,779.15/34,168.95 = 7,988.42/x
  3. Step 3: Cross multiply
    22,779.15x = 34,168.95 × 7,988.42
  4. Step 4: Simplify right side
    22,779.15x = 272,955,923.56
  5. Step 5: Solve for x
    x = 272,955,923.56/22,779.15
  6. Step 6: Final answer
    x = 11,982.71

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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.