Home / 20,727.60-31,087.80-7,573.20

Finding the Fourth Proportional to 20,727.60, 31,087.80 and 7,573.20

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Solution

The fourth proportional to 20,727.60, 31,087.80 and 7,573.20 is: 11,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.60 : 31,087.80 = 7,573.20 : x
  2. Step 2: Convert to fraction form
    20,727.60/31,087.80 = 7,573.20/x
  3. Step 3: Cross multiply
    20,727.60x = 31,087.80 × 7,573.20
  4. Step 4: Simplify right side
    20,727.60x = 235,434,126.96
  5. Step 5: Solve for x
    x = 235,434,126.96/20,727.60
  6. Step 6: Final answer
    x = 11,358.48

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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.