Home / 23,390.62-32,279.52-12,780.91

Finding the Fourth Proportional to 23,390.62, 32,279.52 and 12,780.91

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Solution

The fourth proportional to 23,390.62, 32,279.52 and 12,780.91 is: 17,637.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.62 : 32,279.52 = 12,780.91 : x
  2. Step 2: Convert to fraction form
    23,390.62/32,279.52 = 12,780.91/x
  3. Step 3: Cross multiply
    23,390.62x = 32,279.52 × 12,780.91
  4. Step 4: Simplify right side
    23,390.62x = 412,561,639.96
  5. Step 5: Solve for x
    x = 412,561,639.96/23,390.62
  6. Step 6: Final answer
    x = 17,637.91

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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.