Home / 38,115.41-52,597.75-21,119.90

Finding the Fourth Proportional to 38,115.41, 52,597.75 and 21,119.90

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Solution

The fourth proportional to 38,115.41, 52,597.75 and 21,119.90 is: 29,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.41 : 52,597.75 = 21,119.90 : x
  2. Step 2: Convert to fraction form
    38,115.41/52,597.75 = 21,119.90/x
  3. Step 3: Cross multiply
    38,115.41x = 52,597.75 × 21,119.90
  4. Step 4: Simplify right side
    38,115.41x = 1,110,859,220.23
  5. Step 5: Solve for x
    x = 1,110,859,220.23/38,115.41
  6. Step 6: Final answer
    x = 29,144.62

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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.