Home / 38,570.40-57,859.20-10,867.68

Finding the Fourth Proportional to 38,570.40, 57,859.20 and 10,867.68

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Solution

The fourth proportional to 38,570.40, 57,859.20 and 10,867.68 is: 16,302.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,570.40 : 57,859.20 = 10,867.68 : x
  2. Step 2: Convert to fraction form
    38,570.40/57,859.20 = 10,867.68/x
  3. Step 3: Cross multiply
    38,570.40x = 57,859.20 × 10,867.68
  4. Step 4: Simplify right side
    38,570.40x = 628,795,270.66
  5. Step 5: Solve for x
    x = 628,795,270.66/38,570.40
  6. Step 6: Final answer
    x = 16,302.53

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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.