Home / 31,938.06-47,867.40-20,254.62

Finding the Fourth Proportional to 31,938.06, 47,867.40 and 20,254.62

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Solution

The fourth proportional to 31,938.06, 47,867.40 and 20,254.62 is: 30,356.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938.06 : 47,867.40 = 20,254.62 : x
  2. Step 2: Convert to fraction form
    31,938.06/47,867.40 = 20,254.62/x
  3. Step 3: Cross multiply
    31,938.06x = 47,867.40 × 20,254.62
  4. Step 4: Simplify right side
    31,938.06x = 969,535,997.39
  5. Step 5: Solve for x
    x = 969,535,997.39/31,938.06
  6. Step 6: Final answer
    x = 30,356.76

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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.