Home / 31,487.60-47,231.40-25,727.60

Finding the Fourth Proportional to 31,487.60, 47,231.40 and 25,727.60

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Solution

The fourth proportional to 31,487.60, 47,231.40 and 25,727.60 is: 38,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.60 : 47,231.40 = 25,727.60 : x
  2. Step 2: Convert to fraction form
    31,487.60/47,231.40 = 25,727.60/x
  3. Step 3: Cross multiply
    31,487.60x = 47,231.40 × 25,727.60
  4. Step 4: Simplify right side
    31,487.60x = 1,215,150,566.64
  5. Step 5: Solve for x
    x = 1,215,150,566.64/31,487.60
  6. Step 6: Final answer
    x = 38,591.40

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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.