Home / 16,121.48-22,254.60-15,112.76

Finding the Fourth Proportional to 16,121.48, 22,254.60 and 15,112.76

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Solution

The fourth proportional to 16,121.48, 22,254.60 and 15,112.76 is: 20,862.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,121.48 : 22,254.60 = 15,112.76 : x
  2. Step 2: Convert to fraction form
    16,121.48/22,254.60 = 15,112.76/x
  3. Step 3: Cross multiply
    16,121.48x = 22,254.60 × 15,112.76
  4. Step 4: Simplify right side
    16,121.48x = 336,328,428.70
  5. Step 5: Solve for x
    x = 336,328,428.70/16,121.48
  6. Step 6: Final answer
    x = 20,862.13

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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.