Home / 19,721.88-27,209.52-12,062.34

Finding the Fourth Proportional to 19,721.88, 27,209.52 and 12,062.34

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Solution

The fourth proportional to 19,721.88, 27,209.52 and 12,062.34 is: 16,641.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.88 : 27,209.52 = 12,062.34 : x
  2. Step 2: Convert to fraction form
    19,721.88/27,209.52 = 12,062.34/x
  3. Step 3: Cross multiply
    19,721.88x = 27,209.52 × 12,062.34
  4. Step 4: Simplify right side
    19,721.88x = 328,210,481.48
  5. Step 5: Solve for x
    x = 328,210,481.48/19,721.88
  6. Step 6: Final answer
    x = 16,641.95

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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.