Home / 22,921.80-34,374.60-8,131.20

Finding the Fourth Proportional to 22,921.80, 34,374.60 and 8,131.20

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Solution

The fourth proportional to 22,921.80, 34,374.60 and 8,131.20 is: 12,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,921.80 : 34,374.60 = 8,131.20 : x
  2. Step 2: Convert to fraction form
    22,921.80/34,374.60 = 8,131.20/x
  3. Step 3: Cross multiply
    22,921.80x = 34,374.60 × 8,131.20
  4. Step 4: Simplify right side
    22,921.80x = 279,506,747.52
  5. Step 5: Solve for x
    x = 279,506,747.52/22,921.80
  6. Step 6: Final answer
    x = 12,193.93

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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.