Home / 19,904.75-27,439.12-12,733.90

Finding the Fourth Proportional to 19,904.75, 27,439.12 and 12,733.90

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Solution

The fourth proportional to 19,904.75, 27,439.12 and 12,733.90 is: 17,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904.75 : 27,439.12 = 12,733.90 : x
  2. Step 2: Convert to fraction form
    19,904.75/27,439.12 = 12,733.90/x
  3. Step 3: Cross multiply
    19,904.75x = 27,439.12 × 12,733.90
  4. Step 4: Simplify right side
    19,904.75x = 349,407,010.17
  5. Step 5: Solve for x
    x = 349,407,010.17/19,904.75
  6. Step 6: Final answer
    x = 17,553.95

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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.