Home / 31,233.81-43,102.76-17,086.76

Finding the Fourth Proportional to 31,233.81, 43,102.76 and 17,086.76

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Solution

The fourth proportional to 31,233.81, 43,102.76 and 17,086.76 is: 23,579.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,233.81 : 43,102.76 = 17,086.76 : x
  2. Step 2: Convert to fraction form
    31,233.81/43,102.76 = 17,086.76/x
  3. Step 3: Cross multiply
    31,233.81x = 43,102.76 × 17,086.76
  4. Step 4: Simplify right side
    31,233.81x = 736,486,515.46
  5. Step 5: Solve for x
    x = 736,486,515.46/31,233.81
  6. Step 6: Final answer
    x = 23,579.78

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.