Home / 24,855.40-34,283.28-20,755.90

Finding the Fourth Proportional to 24,855.40, 34,283.28 and 20,755.90

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Solution

The fourth proportional to 24,855.40, 34,283.28 and 20,755.90 is: 28,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,855.40 : 34,283.28 = 20,755.90 : x
  2. Step 2: Convert to fraction form
    24,855.40/34,283.28 = 20,755.90/x
  3. Step 3: Cross multiply
    24,855.40x = 34,283.28 × 20,755.90
  4. Step 4: Simplify right side
    24,855.40x = 711,580,331.35
  5. Step 5: Solve for x
    x = 711,580,331.35/24,855.40
  6. Step 6: Final answer
    x = 28,628.80

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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.