Home / 38,395.90-57,590.07-13,431.34

Finding the Fourth Proportional to 38,395.90, 57,590.07 and 13,431.34

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Solution

The fourth proportional to 38,395.90, 57,590.07 and 13,431.34 is: 20,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,395.90 : 57,590.07 = 13,431.34 : x
  2. Step 2: Convert to fraction form
    38,395.90/57,590.07 = 13,431.34/x
  3. Step 3: Cross multiply
    38,395.90x = 57,590.07 × 13,431.34
  4. Step 4: Simplify right side
    38,395.90x = 773,511,810.79
  5. Step 5: Solve for x
    x = 773,511,810.79/38,395.90
  6. Step 6: Final answer
    x = 20,145.69

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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.