Home / 27,921.77-38,532.34-15,174.95

Finding the Fourth Proportional to 27,921.77, 38,532.34 and 15,174.95

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Solution

The fourth proportional to 27,921.77, 38,532.34 and 15,174.95 is: 20,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.77 : 38,532.34 = 15,174.95 : x
  2. Step 2: Convert to fraction form
    27,921.77/38,532.34 = 15,174.95/x
  3. Step 3: Cross multiply
    27,921.77x = 38,532.34 × 15,174.95
  4. Step 4: Simplify right side
    27,921.77x = 584,726,567.85
  5. Step 5: Solve for x
    x = 584,726,567.85/27,921.77
  6. Step 6: Final answer
    x = 20,941.60

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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.