Home / 23,390.44-32,278.80-12,780.15

Finding the Fourth Proportional to 23,390.44, 32,278.80 and 12,780.15

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Solution

The fourth proportional to 23,390.44, 32,278.80 and 12,780.15 is: 17,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.44 : 32,278.80 = 12,780.15 : x
  2. Step 2: Convert to fraction form
    23,390.44/32,278.80 = 12,780.15/x
  3. Step 3: Cross multiply
    23,390.44x = 32,278.80 × 12,780.15
  4. Step 4: Simplify right side
    23,390.44x = 412,527,832.70
  5. Step 5: Solve for x
    x = 412,527,832.70/23,390.44
  6. Step 6: Final answer
    x = 17,636.60

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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.