Home / 20,374.27-28,116.59-11,882.28

Finding the Fourth Proportional to 20,374.27, 28,116.59 and 11,882.28

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Solution

The fourth proportional to 20,374.27, 28,116.59 and 11,882.28 is: 16,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.27 : 28,116.59 = 11,882.28 : x
  2. Step 2: Convert to fraction form
    20,374.27/28,116.59 = 11,882.28/x
  3. Step 3: Cross multiply
    20,374.27x = 28,116.59 × 11,882.28
  4. Step 4: Simplify right side
    20,374.27x = 334,089,135.61
  5. Step 5: Solve for x
    x = 334,089,135.61/20,374.27
  6. Step 6: Final answer
    x = 16,397.60

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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.