Home / 27,427.89-37,850.40-15,491.19

Finding the Fourth Proportional to 27,427.89, 37,850.40 and 15,491.19

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Solution

The fourth proportional to 27,427.89, 37,850.40 and 15,491.19 is: 21,377.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,427.89 : 37,850.40 = 15,491.19 : x
  2. Step 2: Convert to fraction form
    27,427.89/37,850.40 = 15,491.19/x
  3. Step 3: Cross multiply
    27,427.89x = 37,850.40 × 15,491.19
  4. Step 4: Simplify right side
    27,427.89x = 586,347,737.98
  5. Step 5: Solve for x
    x = 586,347,737.98/27,427.89
  6. Step 6: Final answer
    x = 21,377.79

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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.