Home / 27,129.07-40,719.90-13,098.99

Finding the Fourth Proportional to 27,129.07, 40,719.90 and 13,098.99

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Solution

The fourth proportional to 27,129.07, 40,719.90 and 13,098.99 is: 19,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.07 : 40,719.90 = 13,098.99 : x
  2. Step 2: Convert to fraction form
    27,129.07/40,719.90 = 13,098.99/x
  3. Step 3: Cross multiply
    27,129.07x = 40,719.90 × 13,098.99
  4. Step 4: Simplify right side
    27,129.07x = 533,389,562.90
  5. Step 5: Solve for x
    x = 533,389,562.90/27,129.07
  6. Step 6: Final answer
    x = 19,661.18

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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.