Home / 15,731.81-23,581.25-5,867.12

Finding the Fourth Proportional to 15,731.81, 23,581.25 and 5,867.12

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Solution

The fourth proportional to 15,731.81, 23,581.25 and 5,867.12 is: 8,794.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,731.81 : 23,581.25 = 5,867.12 : x
  2. Step 2: Convert to fraction form
    15,731.81/23,581.25 = 5,867.12/x
  3. Step 3: Cross multiply
    15,731.81x = 23,581.25 × 5,867.12
  4. Step 4: Simplify right side
    15,731.81x = 138,353,876.26
  5. Step 5: Solve for x
    x = 138,353,876.26/15,731.81
  6. Step 6: Final answer
    x = 8,794.53

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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.