Home / 38,018.22-57,023.67-11,715.90

Finding the Fourth Proportional to 38,018.22, 57,023.67 and 11,715.90

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Solution

The fourth proportional to 38,018.22, 57,023.67 and 11,715.90 is: 17,572.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,018.22 : 57,023.67 = 11,715.90 : x
  2. Step 2: Convert to fraction form
    38,018.22/57,023.67 = 11,715.90/x
  3. Step 3: Cross multiply
    38,018.22x = 57,023.67 × 11,715.90
  4. Step 4: Simplify right side
    38,018.22x = 668,083,615.35
  5. Step 5: Solve for x
    x = 668,083,615.35/38,018.22
  6. Step 6: Final answer
    x = 17,572.72

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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.