Home / 27,954.30-38,576.61-20,816.15

Finding the Fourth Proportional to 27,954.30, 38,576.61 and 20,816.15

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Solution

The fourth proportional to 27,954.30, 38,576.61 and 20,816.15 is: 28,726.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,954.30 : 38,576.61 = 20,816.15 : x
  2. Step 2: Convert to fraction form
    27,954.30/38,576.61 = 20,816.15/x
  3. Step 3: Cross multiply
    27,954.30x = 38,576.61 × 20,816.15
  4. Step 4: Simplify right side
    27,954.30x = 803,016,307.37
  5. Step 5: Solve for x
    x = 803,016,307.37/27,954.30
  6. Step 6: Final answer
    x = 28,726.04

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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.