Home / 20,926.22-28,864.60-13,374.86

Finding the Fourth Proportional to 20,926.22, 28,864.60 and 13,374.86

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Solution

The fourth proportional to 20,926.22, 28,864.60 and 13,374.86 is: 18,448.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.22 : 28,864.60 = 13,374.86 : x
  2. Step 2: Convert to fraction form
    20,926.22/28,864.60 = 13,374.86/x
  3. Step 3: Cross multiply
    20,926.22x = 28,864.60 × 13,374.86
  4. Step 4: Simplify right side
    20,926.22x = 386,059,983.96
  5. Step 5: Solve for x
    x = 386,059,983.96/20,926.22
  6. Step 6: Final answer
    x = 18,448.62

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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.