Home / 22,622.91-31,219.65-12,551.55

Finding the Fourth Proportional to 22,622.91, 31,219.65 and 12,551.55

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Solution

The fourth proportional to 22,622.91, 31,219.65 and 12,551.55 is: 17,321.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,622.91 : 31,219.65 = 12,551.55 : x
  2. Step 2: Convert to fraction form
    22,622.91/31,219.65 = 12,551.55/x
  3. Step 3: Cross multiply
    22,622.91x = 31,219.65 × 12,551.55
  4. Step 4: Simplify right side
    22,622.91x = 391,854,997.96
  5. Step 5: Solve for x
    x = 391,854,997.96/22,622.91
  6. Step 6: Final answer
    x = 17,321.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.