Home / 20,747.13-31,133.45-10,893.48

Finding the Fourth Proportional to 20,747.13, 31,133.45 and 10,893.48

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Solution

The fourth proportional to 20,747.13, 31,133.45 and 10,893.48 is: 16,346.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.13 : 31,133.45 = 10,893.48 : x
  2. Step 2: Convert to fraction form
    20,747.13/31,133.45 = 10,893.48/x
  3. Step 3: Cross multiply
    20,747.13x = 31,133.45 × 10,893.48
  4. Step 4: Simplify right side
    20,747.13x = 339,151,614.91
  5. Step 5: Solve for x
    x = 339,151,614.91/20,747.13
  6. Step 6: Final answer
    x = 16,346.92

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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.