Home / 38,242.78-57,315.49-21,612.09

Finding the Fourth Proportional to 38,242.78, 57,315.49 and 21,612.09

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Solution

The fourth proportional to 38,242.78, 57,315.49 and 21,612.09 is: 32,390.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,242.78 : 57,315.49 = 21,612.09 : x
  2. Step 2: Convert to fraction form
    38,242.78/57,315.49 = 21,612.09/x
  3. Step 3: Cross multiply
    38,242.78x = 57,315.49 × 21,612.09
  4. Step 4: Simplify right side
    38,242.78x = 1,238,707,241.70
  5. Step 5: Solve for x
    x = 1,238,707,241.70/38,242.78
  6. Step 6: Final answer
    x = 32,390.62

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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.