Home / 15,788.46-23,680.80-12,281.97

Finding the Fourth Proportional to 15,788.46, 23,680.80 and 12,281.97

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Solution

The fourth proportional to 15,788.46, 23,680.80 and 12,281.97 is: 18,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,788.46 : 23,680.80 = 12,281.97 : x
  2. Step 2: Convert to fraction form
    15,788.46/23,680.80 = 12,281.97/x
  3. Step 3: Cross multiply
    15,788.46x = 23,680.80 × 12,281.97
  4. Step 4: Simplify right side
    15,788.46x = 290,846,875.18
  5. Step 5: Solve for x
    x = 290,846,875.18/15,788.46
  6. Step 6: Final answer
    x = 18,421.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.