Home / 27,428.66-37,851.27-15,491.96

Finding the Fourth Proportional to 27,428.66, 37,851.27 and 15,491.96

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Solution

The fourth proportional to 27,428.66, 37,851.27 and 15,491.96 is: 21,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,428.66 : 37,851.27 = 15,491.96 : x
  2. Step 2: Convert to fraction form
    27,428.66/37,851.27 = 15,491.96/x
  3. Step 3: Cross multiply
    27,428.66x = 37,851.27 × 15,491.96
  4. Step 4: Simplify right side
    27,428.66x = 586,390,360.79
  5. Step 5: Solve for x
    x = 586,390,360.79/27,428.66
  6. Step 6: Final answer
    x = 21,378.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.