Home / 20,110.95-30,126.33-15,707.79

Finding the Fourth Proportional to 20,110.95, 30,126.33 and 15,707.79

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Solution

The fourth proportional to 20,110.95, 30,126.33 and 15,707.79 is: 23,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.95 : 30,126.33 = 15,707.79 : x
  2. Step 2: Convert to fraction form
    20,110.95/30,126.33 = 15,707.79/x
  3. Step 3: Cross multiply
    20,110.95x = 30,126.33 × 15,707.79
  4. Step 4: Simplify right side
    20,110.95x = 473,218,065.11
  5. Step 5: Solve for x
    x = 473,218,065.11/20,110.95
  6. Step 6: Final answer
    x = 23,530.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.