Home / 27,868.80-38,459.01-15,932.46

Finding the Fourth Proportional to 27,868.80, 38,459.01 and 15,932.46

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Solution

The fourth proportional to 27,868.80, 38,459.01 and 15,932.46 is: 21,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.80 : 38,459.01 = 15,932.46 : x
  2. Step 2: Convert to fraction form
    27,868.80/38,459.01 = 15,932.46/x
  3. Step 3: Cross multiply
    27,868.80x = 38,459.01 × 15,932.46
  4. Step 4: Simplify right side
    27,868.80x = 612,746,638.46
  5. Step 5: Solve for x
    x = 612,746,638.46/27,868.80
  6. Step 6: Final answer
    x = 21,986.83

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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.