Home / 27,966.29-38,584.79-15,864.78

Finding the Fourth Proportional to 27,966.29, 38,584.79 and 15,864.78

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Solution

The fourth proportional to 27,966.29, 38,584.79 and 15,864.78 is: 21,888.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,966.29 : 38,584.79 = 15,864.78 : x
  2. Step 2: Convert to fraction form
    27,966.29/38,584.79 = 15,864.78/x
  3. Step 3: Cross multiply
    27,966.29x = 38,584.79 × 15,864.78
  4. Step 4: Simplify right side
    27,966.29x = 612,139,204.70
  5. Step 5: Solve for x
    x = 612,139,204.70/27,966.29
  6. Step 6: Final answer
    x = 21,888.47

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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.