Home / 20,856.52-31,253.37-12,527.38

Finding the Fourth Proportional to 20,856.52, 31,253.37 and 12,527.38

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Solution

The fourth proportional to 20,856.52, 31,253.37 and 12,527.38 is: 18,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856.52 : 31,253.37 = 12,527.38 : x
  2. Step 2: Convert to fraction form
    20,856.52/31,253.37 = 12,527.38/x
  3. Step 3: Cross multiply
    20,856.52x = 31,253.37 × 12,527.38
  4. Step 4: Simplify right side
    20,856.52x = 391,522,842.27
  5. Step 5: Solve for x
    x = 391,522,842.27/20,856.52
  6. Step 6: Final answer
    x = 18,772.20

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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.