Home / 23,780.79-32,818.07-13,171.21

Finding the Fourth Proportional to 23,780.79, 32,818.07 and 13,171.21

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Solution

The fourth proportional to 23,780.79, 32,818.07 and 13,171.21 is: 18,176.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,780.79 : 32,818.07 = 13,171.21 : x
  2. Step 2: Convert to fraction form
    23,780.79/32,818.07 = 13,171.21/x
  3. Step 3: Cross multiply
    23,780.79x = 32,818.07 × 13,171.21
  4. Step 4: Simplify right side
    23,780.79x = 432,253,691.76
  5. Step 5: Solve for x
    x = 432,253,691.76/23,780.79
  6. Step 6: Final answer
    x = 18,176.59

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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.