Home / 31,517.28-47,192.40-19,020.60

Finding the Fourth Proportional to 31,517.28, 47,192.40 and 19,020.60

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Solution

The fourth proportional to 31,517.28, 47,192.40 and 19,020.60 is: 28,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,517.28 : 47,192.40 = 19,020.60 : x
  2. Step 2: Convert to fraction form
    31,517.28/47,192.40 = 19,020.60/x
  3. Step 3: Cross multiply
    31,517.28x = 47,192.40 × 19,020.60
  4. Step 4: Simplify right side
    31,517.28x = 897,627,763.44
  5. Step 5: Solve for x
    x = 897,627,763.44/31,517.28
  6. Step 6: Final answer
    x = 28,480.50

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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.