Home / 15,531.75-23,298.17-5,143.23

Finding the Fourth Proportional to 15,531.75, 23,298.17 and 5,143.23

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Solution

The fourth proportional to 15,531.75, 23,298.17 and 5,143.23 is: 7,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.75 : 23,298.17 = 5,143.23 : x
  2. Step 2: Convert to fraction form
    15,531.75/23,298.17 = 5,143.23/x
  3. Step 3: Cross multiply
    15,531.75x = 23,298.17 × 5,143.23
  4. Step 4: Simplify right side
    15,531.75x = 119,827,821.17
  5. Step 5: Solve for x
    x = 119,827,821.17/15,531.75
  6. Step 6: Final answer
    x = 7,715.02

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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.