Home / 31,340.14-47,029.34-13,575.53

Finding the Fourth Proportional to 31,340.14, 47,029.34 and 13,575.53

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Solution

The fourth proportional to 31,340.14, 47,029.34 and 13,575.53 is: 20,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,340.14 : 47,029.34 = 13,575.53 : x
  2. Step 2: Convert to fraction form
    31,340.14/47,029.34 = 13,575.53/x
  3. Step 3: Cross multiply
    31,340.14x = 47,029.34 × 13,575.53
  4. Step 4: Simplify right side
    31,340.14x = 638,448,367.56
  5. Step 5: Solve for x
    x = 638,448,367.56/31,340.14
  6. Step 6: Final answer
    x = 20,371.59

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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.