Home / 20,439.52-30,659.28-6,590.56

Finding the Fourth Proportional to 20,439.52, 30,659.28 and 6,590.56

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Solution

The fourth proportional to 20,439.52, 30,659.28 and 6,590.56 is: 9,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439.52 : 30,659.28 = 6,590.56 : x
  2. Step 2: Convert to fraction form
    20,439.52/30,659.28 = 6,590.56/x
  3. Step 3: Cross multiply
    20,439.52x = 30,659.28 × 6,590.56
  4. Step 4: Simplify right side
    20,439.52x = 202,061,824.40
  5. Step 5: Solve for x
    x = 202,061,824.40/20,439.52
  6. Step 6: Final answer
    x = 9,885.84

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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.