Home / 19,781.35-29,632.28-9,236.82

Finding the Fourth Proportional to 19,781.35, 29,632.28 and 9,236.82

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Solution

The fourth proportional to 19,781.35, 29,632.28 and 9,236.82 is: 13,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.35 : 29,632.28 = 9,236.82 : x
  2. Step 2: Convert to fraction form
    19,781.35/29,632.28 = 9,236.82/x
  3. Step 3: Cross multiply
    19,781.35x = 29,632.28 × 9,236.82
  4. Step 4: Simplify right side
    19,781.35x = 273,708,101.49
  5. Step 5: Solve for x
    x = 273,708,101.49/19,781.35
  6. Step 6: Final answer
    x = 13,836.68

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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.