Home / 15,690-23,531.40-4,593.96

Finding the Fourth Proportional to 15,690, 23,531.40 and 4,593.96

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Solution

The fourth proportional to 15,690, 23,531.40 and 4,593.96 is: 6,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690 : 23,531.40 = 4,593.96 : x
  2. Step 2: Convert to fraction form
    15,690/23,531.40 = 4,593.96/x
  3. Step 3: Cross multiply
    15,690x = 23,531.40 × 4,593.96
  4. Step 4: Simplify right side
    15,690x = 108,102,310.34
  5. Step 5: Solve for x
    x = 108,102,310.34/15,690
  6. Step 6: Final answer
    x = 6,889.89

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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.