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Finding the Fourth Proportional to 22,031.76, 30,403.08 and 12,600.12

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Solution

The fourth proportional to 22,031.76, 30,403.08 and 12,600.12 is: 17,387.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.76 : 30,403.08 = 12,600.12 : x
  2. Step 2: Convert to fraction form
    22,031.76/30,403.08 = 12,600.12/x
  3. Step 3: Cross multiply
    22,031.76x = 30,403.08 × 12,600.12
  4. Step 4: Simplify right side
    22,031.76x = 383,082,456.37
  5. Step 5: Solve for x
    x = 383,082,456.37/22,031.76
  6. Step 6: Final answer
    x = 17,387.74

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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.