Home / 38,147.07-52,642.42-21,151.35

Finding the Fourth Proportional to 38,147.07, 52,642.42 and 21,151.35

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Solution

The fourth proportional to 38,147.07, 52,642.42 and 21,151.35 is: 29,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147.07 : 52,642.42 = 21,151.35 : x
  2. Step 2: Convert to fraction form
    38,147.07/52,642.42 = 21,151.35/x
  3. Step 3: Cross multiply
    38,147.07x = 52,642.42 × 21,151.35
  4. Step 4: Simplify right side
    38,147.07x = 1,113,458,197.39
  5. Step 5: Solve for x
    x = 1,113,458,197.39/38,147.07
  6. Step 6: Final answer
    x = 29,188.56

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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.