Home / 15,987.57-23,982.71-4,301.43

Finding the Fourth Proportional to 15,987.57, 23,982.71 and 4,301.43

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Solution

The fourth proportional to 15,987.57, 23,982.71 and 4,301.43 is: 6,452.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.57 : 23,982.71 = 4,301.43 : x
  2. Step 2: Convert to fraction form
    15,987.57/23,982.71 = 4,301.43/x
  3. Step 3: Cross multiply
    15,987.57x = 23,982.71 × 4,301.43
  4. Step 4: Simplify right side
    15,987.57x = 103,159,926.77
  5. Step 5: Solve for x
    x = 103,159,926.77/15,987.57
  6. Step 6: Final answer
    x = 6,452.51

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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.