Home / 19,729.34-27,232.15-12,559.47

Finding the Fourth Proportional to 19,729.34, 27,232.15 and 12,559.47

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Solution

The fourth proportional to 19,729.34, 27,232.15 and 12,559.47 is: 17,335.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,729.34 : 27,232.15 = 12,559.47 : x
  2. Step 2: Convert to fraction form
    19,729.34/27,232.15 = 12,559.47/x
  3. Step 3: Cross multiply
    19,729.34x = 27,232.15 × 12,559.47
  4. Step 4: Simplify right side
    19,729.34x = 342,021,414.17
  5. Step 5: Solve for x
    x = 342,021,414.17/19,729.34
  6. Step 6: Final answer
    x = 17,335.68

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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.