Home / 27,428.40-37,849.14-15,491.70

Finding the Fourth Proportional to 27,428.40, 37,849.14 and 15,491.70

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Solution

The fourth proportional to 27,428.40, 37,849.14 and 15,491.70 is: 21,377.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,428.40 : 37,849.14 = 15,491.70 : x
  2. Step 2: Convert to fraction form
    27,428.40/37,849.14 = 15,491.70/x
  3. Step 3: Cross multiply
    27,428.40x = 37,849.14 × 15,491.70
  4. Step 4: Simplify right side
    27,428.40x = 586,347,522.14
  5. Step 5: Solve for x
    x = 586,347,522.14/27,428.40
  6. Step 6: Final answer
    x = 21,377.39

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1.5x scale

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.