Home / 38,147.14-52,642.11-21,151.45

Finding the Fourth Proportional to 38,147.14, 52,642.11 and 21,151.45

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Solution

The fourth proportional to 38,147.14, 52,642.11 and 21,151.45 is: 29,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147.14 : 52,642.11 = 21,151.45 : x
  2. Step 2: Convert to fraction form
    38,147.14/52,642.11 = 21,151.45/x
  3. Step 3: Cross multiply
    38,147.14x = 52,642.11 × 21,151.45
  4. Step 4: Simplify right side
    38,147.14x = 1,113,456,957.56
  5. Step 5: Solve for x
    x = 1,113,456,957.56/38,147.14
  6. Step 6: Final answer
    x = 29,188.48

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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.