Home / 31,619.84-47,434.88-11,899.92

Finding the Fourth Proportional to 31,619.84, 47,434.88 and 11,899.92

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Solution

The fourth proportional to 31,619.84, 47,434.88 and 11,899.92 is: 17,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619.84 : 47,434.88 = 11,899.92 : x
  2. Step 2: Convert to fraction form
    31,619.84/47,434.88 = 11,899.92/x
  3. Step 3: Cross multiply
    31,619.84x = 47,434.88 × 11,899.92
  4. Step 4: Simplify right side
    31,619.84x = 564,471,277.21
  5. Step 5: Solve for x
    x = 564,471,277.21/31,619.84
  6. Step 6: Final answer
    x = 17,851.81

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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.