Home / 22,921.16-34,394.46-12,390.92

Finding the Fourth Proportional to 22,921.16, 34,394.46 and 12,390.92

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Solution

The fourth proportional to 22,921.16, 34,394.46 and 12,390.92 is: 18,593.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,921.16 : 34,394.46 = 12,390.92 : x
  2. Step 2: Convert to fraction form
    22,921.16/34,394.46 = 12,390.92/x
  3. Step 3: Cross multiply
    22,921.16x = 34,394.46 × 12,390.92
  4. Step 4: Simplify right side
    22,921.16x = 426,179,002.30
  5. Step 5: Solve for x
    x = 426,179,002.30/22,921.16
  6. Step 6: Final answer
    x = 18,593.26

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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.