Home / 27,761.51-38,311.20-15,014.95

Finding the Fourth Proportional to 27,761.51, 38,311.20 and 15,014.95

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Solution

The fourth proportional to 27,761.51, 38,311.20 and 15,014.95 is: 20,720.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,761.51 : 38,311.20 = 15,014.95 : x
  2. Step 2: Convert to fraction form
    27,761.51/38,311.20 = 15,014.95/x
  3. Step 3: Cross multiply
    27,761.51x = 38,311.20 × 15,014.95
  4. Step 4: Simplify right side
    27,761.51x = 575,240,576.94
  5. Step 5: Solve for x
    x = 575,240,576.94/27,761.51
  6. Step 6: Final answer
    x = 20,720.79

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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.