Home / 19,891.52-27,439.48-12,335.28

Finding the Fourth Proportional to 19,891.52, 27,439.48 and 12,335.28

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Solution

The fourth proportional to 19,891.52, 27,439.48 and 12,335.28 is: 17,015.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.52 : 27,439.48 = 12,335.28 : x
  2. Step 2: Convert to fraction form
    19,891.52/27,439.48 = 12,335.28/x
  3. Step 3: Cross multiply
    19,891.52x = 27,439.48 × 12,335.28
  4. Step 4: Simplify right side
    19,891.52x = 338,473,668.85
  5. Step 5: Solve for x
    x = 338,473,668.85/19,891.52
  6. Step 6: Final answer
    x = 17,015.98

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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.