Home / 31,512.84-47,276.30-11,791.56

Finding the Fourth Proportional to 31,512.84, 47,276.30 and 11,791.56

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Solution

The fourth proportional to 31,512.84, 47,276.30 and 11,791.56 is: 17,689.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.84 : 47,276.30 = 11,791.56 : x
  2. Step 2: Convert to fraction form
    31,512.84/47,276.30 = 11,791.56/x
  3. Step 3: Cross multiply
    31,512.84x = 47,276.30 × 11,791.56
  4. Step 4: Simplify right side
    31,512.84x = 557,461,328.03
  5. Step 5: Solve for x
    x = 557,461,328.03/31,512.84
  6. Step 6: Final answer
    x = 17,689.97

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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.