Home / 15,781.80-23,672.74-4,095.02

Finding the Fourth Proportional to 15,781.80, 23,672.74 and 4,095.02

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Solution

The fourth proportional to 15,781.80, 23,672.74 and 4,095.02 is: 6,142.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.80 : 23,672.74 = 4,095.02 : x
  2. Step 2: Convert to fraction form
    15,781.80/23,672.74 = 4,095.02/x
  3. Step 3: Cross multiply
    15,781.80x = 23,672.74 × 4,095.02
  4. Step 4: Simplify right side
    15,781.80x = 96,940,343.75
  5. Step 5: Solve for x
    x = 96,940,343.75/15,781.80
  6. Step 6: Final answer
    x = 6,142.54

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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.