Home / 31,814.47-47,727.85-12,091.49

Finding the Fourth Proportional to 31,814.47, 47,727.85 and 12,091.49

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Solution

The fourth proportional to 31,814.47, 47,727.85 and 12,091.49 is: 18,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814.47 : 47,727.85 = 12,091.49 : x
  2. Step 2: Convert to fraction form
    31,814.47/47,727.85 = 12,091.49/x
  3. Step 3: Cross multiply
    31,814.47x = 47,727.85 × 12,091.49
  4. Step 4: Simplify right side
    31,814.47x = 577,100,552.13
  5. Step 5: Solve for x
    x = 577,100,552.13/31,814.47
  6. Step 6: Final answer
    x = 18,139.56

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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.