Home / 31,988.96-47,866.80-18,847.52

Finding the Fourth Proportional to 31,988.96, 47,866.80 and 18,847.52

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Solution

The fourth proportional to 31,988.96, 47,866.80 and 18,847.52 is: 28,202.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,988.96 : 47,866.80 = 18,847.52 : x
  2. Step 2: Convert to fraction form
    31,988.96/47,866.80 = 18,847.52/x
  3. Step 3: Cross multiply
    31,988.96x = 47,866.80 × 18,847.52
  4. Step 4: Simplify right side
    31,988.96x = 902,170,470.34
  5. Step 5: Solve for x
    x = 902,170,470.34/31,988.96
  6. Step 6: Final answer
    x = 28,202.56

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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.