Home / 27,966.17-38,584.62-15,864.65

Finding the Fourth Proportional to 27,966.17, 38,584.62 and 15,864.65

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Solution

The fourth proportional to 27,966.17, 38,584.62 and 15,864.65 is: 21,888.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,966.17 : 38,584.62 = 15,864.65 : x
  2. Step 2: Convert to fraction form
    27,966.17/38,584.62 = 15,864.65/x
  3. Step 3: Cross multiply
    27,966.17x = 38,584.62 × 15,864.65
  4. Step 4: Simplify right side
    27,966.17x = 612,131,588.14
  5. Step 5: Solve for x
    x = 612,131,588.14/27,966.17
  6. Step 6: Final answer
    x = 21,888.29

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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.