Home / 31,438.17-47,160.33-11,453.09

Finding the Fourth Proportional to 31,438.17, 47,160.33 and 11,453.09

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Solution

The fourth proportional to 31,438.17, 47,160.33 and 11,453.09 is: 17,180.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,438.17 : 47,160.33 = 11,453.09 : x
  2. Step 2: Convert to fraction form
    31,438.17/47,160.33 = 11,453.09/x
  3. Step 3: Cross multiply
    31,438.17x = 47,160.33 × 11,453.09
  4. Step 4: Simplify right side
    31,438.17x = 540,131,503.92
  5. Step 5: Solve for x
    x = 540,131,503.92/31,438.17
  6. Step 6: Final answer
    x = 17,180.76

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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.