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Finding the Fourth Proportional to 24,886.40, 37,329.60 and 20,220.80

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Solution

The fourth proportional to 24,886.40, 37,329.60 and 20,220.80 is: 30,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,886.40 : 37,329.60 = 20,220.80 : x
  2. Step 2: Convert to fraction form
    24,886.40/37,329.60 = 20,220.80/x
  3. Step 3: Cross multiply
    24,886.40x = 37,329.60 × 20,220.80
  4. Step 4: Simplify right side
    24,886.40x = 754,834,375.68
  5. Step 5: Solve for x
    x = 754,834,375.68/24,886.40
  6. Step 6: Final answer
    x = 30,331.20

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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.