Home / 31,491.96-47,248.86-13,974.06

Finding the Fourth Proportional to 31,491.96, 47,248.86 and 13,974.06

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Solution

The fourth proportional to 31,491.96, 47,248.86 and 13,974.06 is: 20,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,491.96 : 47,248.86 = 13,974.06 : x
  2. Step 2: Convert to fraction form
    31,491.96/47,248.86 = 13,974.06/x
  3. Step 3: Cross multiply
    31,491.96x = 47,248.86 × 13,974.06
  4. Step 4: Simplify right side
    31,491.96x = 660,258,404.57
  5. Step 5: Solve for x
    x = 660,258,404.57/31,491.96
  6. Step 6: Final answer
    x = 20,965.94

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1.5x scale

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.