Home / 38,218.86-57,317.22-13,257.90

Finding the Fourth Proportional to 38,218.86, 57,317.22 and 13,257.90

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Solution

The fourth proportional to 38,218.86, 57,317.22 and 13,257.90 is: 19,883.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218.86 : 57,317.22 = 13,257.90 : x
  2. Step 2: Convert to fraction form
    38,218.86/57,317.22 = 13,257.90/x
  3. Step 3: Cross multiply
    38,218.86x = 57,317.22 × 13,257.90
  4. Step 4: Simplify right side
    38,218.86x = 759,905,971.04
  5. Step 5: Solve for x
    x = 759,905,971.04/38,218.86
  6. Step 6: Final answer
    x = 19,883.01

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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.