Home / 25,818.60-38,727.90-20,634.60

Finding the Fourth Proportional to 25,818.60, 38,727.90 and 20,634.60

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Solution

The fourth proportional to 25,818.60, 38,727.90 and 20,634.60 is: 30,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,818.60 : 38,727.90 = 20,634.60 : x
  2. Step 2: Convert to fraction form
    25,818.60/38,727.90 = 20,634.60/x
  3. Step 3: Cross multiply
    25,818.60x = 38,727.90 × 20,634.60
  4. Step 4: Simplify right side
    25,818.60x = 799,134,725.34
  5. Step 5: Solve for x
    x = 799,134,725.34/25,818.60
  6. Step 6: Final answer
    x = 30,951.90

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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.