Home / 27,694.18-38,220.15-15,758.02

Finding the Fourth Proportional to 27,694.18, 38,220.15 and 15,758.02

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Solution

The fourth proportional to 27,694.18, 38,220.15 and 15,758.02 is: 21,747.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,694.18 : 38,220.15 = 15,758.02 : x
  2. Step 2: Convert to fraction form
    27,694.18/38,220.15 = 15,758.02/x
  3. Step 3: Cross multiply
    27,694.18x = 38,220.15 × 15,758.02
  4. Step 4: Simplify right side
    27,694.18x = 602,273,888.10
  5. Step 5: Solve for x
    x = 602,273,888.10/27,694.18
  6. Step 6: Final answer
    x = 21,747.31

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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.