Home / 27,959.10-38,582.85-15,211.74

Finding the Fourth Proportional to 27,959.10, 38,582.85 and 15,211.74

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Solution

The fourth proportional to 27,959.10, 38,582.85 and 15,211.74 is: 20,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,959.10 : 38,582.85 = 15,211.74 : x
  2. Step 2: Convert to fraction form
    27,959.10/38,582.85 = 15,211.74/x
  3. Step 3: Cross multiply
    27,959.10x = 38,582.85 × 15,211.74
  4. Step 4: Simplify right side
    27,959.10x = 586,912,282.66
  5. Step 5: Solve for x
    x = 586,912,282.66/27,959.10
  6. Step 6: Final answer
    x = 20,991.82

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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.