Home / 15,432.86-23,125-11,931.44

Finding the Fourth Proportional to 15,432.86, 23,125 and 11,931.44

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Solution

The fourth proportional to 15,432.86, 23,125 and 11,931.44 is: 17,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.86 : 23,125 = 11,931.44 : x
  2. Step 2: Convert to fraction form
    15,432.86/23,125 = 11,931.44/x
  3. Step 3: Cross multiply
    15,432.86x = 23,125 × 11,931.44
  4. Step 4: Simplify right side
    15,432.86x = 275,914,550
  5. Step 5: Solve for x
    x = 275,914,550/15,432.86
  6. Step 6: Final answer
    x = 17,878.38

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1.5x scale

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.