Home / 38,153.88-57,195.18-20,625.48

Finding the Fourth Proportional to 38,153.88, 57,195.18 and 20,625.48

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Solution

The fourth proportional to 38,153.88, 57,195.18 and 20,625.48 is: 30,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,153.88 : 57,195.18 = 20,625.48 : x
  2. Step 2: Convert to fraction form
    38,153.88/57,195.18 = 20,625.48/x
  3. Step 3: Cross multiply
    38,153.88x = 57,195.18 × 20,625.48
  4. Step 4: Simplify right side
    38,153.88x = 1,179,678,041.19
  5. Step 5: Solve for x
    x = 1,179,678,041.19/38,153.88
  6. Step 6: Final answer
    x = 30,918.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.