Home / 20,883.18-31,332.47-9,793.47

Finding the Fourth Proportional to 20,883.18, 31,332.47 and 9,793.47

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Solution

The fourth proportional to 20,883.18, 31,332.47 and 9,793.47 is: 14,693.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.18 : 31,332.47 = 9,793.47 : x
  2. Step 2: Convert to fraction form
    20,883.18/31,332.47 = 9,793.47/x
  3. Step 3: Cross multiply
    20,883.18x = 31,332.47 × 9,793.47
  4. Step 4: Simplify right side
    20,883.18x = 306,853,556.00
  5. Step 5: Solve for x
    x = 306,853,556.00/20,883.18
  6. Step 6: Final answer
    x = 14,693.81

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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.