Home / 20,363.64-28,101.24-12,402.96

Finding the Fourth Proportional to 20,363.64, 28,101.24 and 12,402.96

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Solution

The fourth proportional to 20,363.64, 28,101.24 and 12,402.96 is: 17,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.64 : 28,101.24 = 12,402.96 : x
  2. Step 2: Convert to fraction form
    20,363.64/28,101.24 = 12,402.96/x
  3. Step 3: Cross multiply
    20,363.64x = 28,101.24 × 12,402.96
  4. Step 4: Simplify right side
    20,363.64x = 348,538,555.67
  5. Step 5: Solve for x
    x = 348,538,555.67/20,363.64
  6. Step 6: Final answer
    x = 17,115.73

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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.