Home / 31,867.53-47,758.23-12,135.32

Finding the Fourth Proportional to 31,867.53, 47,758.23 and 12,135.32

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Solution

The fourth proportional to 31,867.53, 47,758.23 and 12,135.32 is: 18,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,867.53 : 47,758.23 = 12,135.32 : x
  2. Step 2: Convert to fraction form
    31,867.53/47,758.23 = 12,135.32/x
  3. Step 3: Cross multiply
    31,867.53x = 47,758.23 × 12,135.32
  4. Step 4: Simplify right side
    31,867.53x = 579,561,403.68
  5. Step 5: Solve for x
    x = 579,561,403.68/31,867.53
  6. Step 6: Final answer
    x = 18,186.58

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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.