Home / 28,161.34-38,862.33-15,414.49

Finding the Fourth Proportional to 28,161.34, 38,862.33 and 15,414.49

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Solution

The fourth proportional to 28,161.34, 38,862.33 and 15,414.49 is: 21,271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.34 : 38,862.33 = 15,414.49 : x
  2. Step 2: Convert to fraction form
    28,161.34/38,862.33 = 15,414.49/x
  3. Step 3: Cross multiply
    28,161.34x = 38,862.33 × 15,414.49
  4. Step 4: Simplify right side
    28,161.34x = 599,042,997.16
  5. Step 5: Solve for x
    x = 599,042,997.16/28,161.34
  6. Step 6: Final answer
    x = 21,271.82

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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.