Home / 38,381.72-57,466.28-19,621.38

Finding the Fourth Proportional to 38,381.72, 57,466.28 and 19,621.38

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Solution

The fourth proportional to 38,381.72, 57,466.28 and 19,621.38 is: 29,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,381.72 : 57,466.28 = 19,621.38 : x
  2. Step 2: Convert to fraction form
    38,381.72/57,466.28 = 19,621.38/x
  3. Step 3: Cross multiply
    38,381.72x = 57,466.28 × 19,621.38
  4. Step 4: Simplify right side
    38,381.72x = 1,127,567,717.07
  5. Step 5: Solve for x
    x = 1,127,567,717.07/38,381.72
  6. Step 6: Final answer
    x = 29,377.73

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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.