Home / 38,291.07-57,436.11-13,330.65

Finding the Fourth Proportional to 38,291.07, 57,436.11 and 13,330.65

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Solution

The fourth proportional to 38,291.07, 57,436.11 and 13,330.65 is: 19,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,291.07 : 57,436.11 = 13,330.65 : x
  2. Step 2: Convert to fraction form
    38,291.07/57,436.11 = 13,330.65/x
  3. Step 3: Cross multiply
    38,291.07x = 57,436.11 × 13,330.65
  4. Step 4: Simplify right side
    38,291.07x = 765,660,679.77
  5. Step 5: Solve for x
    x = 765,660,679.77/38,291.07
  6. Step 6: Final answer
    x = 19,995.80

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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.