Home / 19,887.68-27,444.30-11,925.20

Finding the Fourth Proportional to 19,887.68, 27,444.30 and 11,925.20

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Solution

The fourth proportional to 19,887.68, 27,444.30 and 11,925.20 is: 16,456.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.68 : 27,444.30 = 11,925.20 : x
  2. Step 2: Convert to fraction form
    19,887.68/27,444.30 = 11,925.20/x
  3. Step 3: Cross multiply
    19,887.68x = 27,444.30 × 11,925.20
  4. Step 4: Simplify right side
    19,887.68x = 327,278,766.36
  5. Step 5: Solve for x
    x = 327,278,766.36/19,887.68
  6. Step 6: Final answer
    x = 16,456.36

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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.