Home / 22,080.48-30,472.38-12,520.76

Finding the Fourth Proportional to 22,080.48, 30,472.38 and 12,520.76

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Solution

The fourth proportional to 22,080.48, 30,472.38 and 12,520.76 is: 17,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,080.48 : 30,472.38 = 12,520.76 : x
  2. Step 2: Convert to fraction form
    22,080.48/30,472.38 = 12,520.76/x
  3. Step 3: Cross multiply
    22,080.48x = 30,472.38 × 12,520.76
  4. Step 4: Simplify right side
    22,080.48x = 381,537,356.61
  5. Step 5: Solve for x
    x = 381,537,356.61/22,080.48
  6. Step 6: Final answer
    x = 17,279.40

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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.