Home / 21,876.41-30,210.17-17,432.85

Finding the Fourth Proportional to 21,876.41, 30,210.17 and 17,432.85

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Solution

The fourth proportional to 21,876.41, 30,210.17 and 17,432.85 is: 24,073.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,876.41 : 30,210.17 = 17,432.85 : x
  2. Step 2: Convert to fraction form
    21,876.41/30,210.17 = 17,432.85/x
  3. Step 3: Cross multiply
    21,876.41x = 30,210.17 × 17,432.85
  4. Step 4: Simplify right side
    21,876.41x = 526,649,388.21
  5. Step 5: Solve for x
    x = 526,649,388.21/21,876.41
  6. Step 6: Final answer
    x = 24,073.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.