Home / 17,729.60-24,439.04-12,130.88

Finding the Fourth Proportional to 17,729.60, 24,439.04 and 12,130.88

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Solution

The fourth proportional to 17,729.60, 24,439.04 and 12,130.88 is: 16,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,729.60 : 24,439.04 = 12,130.88 : x
  2. Step 2: Convert to fraction form
    17,729.60/24,439.04 = 12,130.88/x
  3. Step 3: Cross multiply
    17,729.60x = 24,439.04 × 12,130.88
  4. Step 4: Simplify right side
    17,729.60x = 296,467,061.56
  5. Step 5: Solve for x
    x = 296,467,061.56/17,729.60
  6. Step 6: Final answer
    x = 16,721.59

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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.