Home / 38,939.40-58,344.30-19,175.40

Finding the Fourth Proportional to 38,939.40, 58,344.30 and 19,175.40

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Solution

The fourth proportional to 38,939.40, 58,344.30 and 19,175.40 is: 28,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.40 : 58,344.30 = 19,175.40 : x
  2. Step 2: Convert to fraction form
    38,939.40/58,344.30 = 19,175.40/x
  3. Step 3: Cross multiply
    38,939.40x = 58,344.30 × 19,175.40
  4. Step 4: Simplify right side
    38,939.40x = 1,118,775,290.22
  5. Step 5: Solve for x
    x = 1,118,775,290.22/38,939.40
  6. Step 6: Final answer
    x = 28,731.19

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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.