Home / 22,337.20-30,829.16-12,911.24

Finding the Fourth Proportional to 22,337.20, 30,829.16 and 12,911.24

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Solution

The fourth proportional to 22,337.20, 30,829.16 and 12,911.24 is: 17,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,337.20 : 30,829.16 = 12,911.24 : x
  2. Step 2: Convert to fraction form
    22,337.20/30,829.16 = 12,911.24/x
  3. Step 3: Cross multiply
    22,337.20x = 30,829.16 × 12,911.24
  4. Step 4: Simplify right side
    22,337.20x = 398,042,683.76
  5. Step 5: Solve for x
    x = 398,042,683.76/22,337.20
  6. Step 6: Final answer
    x = 17,819.72

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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.