Home / 22,081.14-30,471.80-12,649.50

Finding the Fourth Proportional to 22,081.14, 30,471.80 and 12,649.50

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Solution

The fourth proportional to 22,081.14, 30,471.80 and 12,649.50 is: 17,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,081.14 : 30,471.80 = 12,649.50 : x
  2. Step 2: Convert to fraction form
    22,081.14/30,471.80 = 12,649.50/x
  3. Step 3: Cross multiply
    22,081.14x = 30,471.80 × 12,649.50
  4. Step 4: Simplify right side
    22,081.14x = 385,452,970.85
  5. Step 5: Solve for x
    x = 385,452,970.85/22,081.14
  6. Step 6: Final answer
    x = 17,456.21

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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.