Home / 27,172.13-40,820.31-19,294.07

Finding the Fourth Proportional to 27,172.13, 40,820.31 and 19,294.07

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Solution

The fourth proportional to 27,172.13, 40,820.31 and 19,294.07 is: 28,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,172.13 : 40,820.31 = 19,294.07 : x
  2. Step 2: Convert to fraction form
    27,172.13/40,820.31 = 19,294.07/x
  3. Step 3: Cross multiply
    27,172.13x = 40,820.31 × 19,294.07
  4. Step 4: Simplify right side
    27,172.13x = 787,589,867.54
  5. Step 5: Solve for x
    x = 787,589,867.54/27,172.13
  6. Step 6: Final answer
    x = 28,985.21

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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.