Home / 15,085.20-22,718.13-13,738.47

Finding the Fourth Proportional to 15,085.20, 22,718.13 and 13,738.47

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Solution

The fourth proportional to 15,085.20, 22,718.13 and 13,738.47 is: 20,689.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,085.20 : 22,718.13 = 13,738.47 : x
  2. Step 2: Convert to fraction form
    15,085.20/22,718.13 = 13,738.47/x
  3. Step 3: Cross multiply
    15,085.20x = 22,718.13 × 13,738.47
  4. Step 4: Simplify right side
    15,085.20x = 312,112,314.44
  5. Step 5: Solve for x
    x = 312,112,314.44/15,085.20
  6. Step 6: Final answer
    x = 20,689.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.