Home / 31,578.44-47,335.98-10,787.72

Finding the Fourth Proportional to 31,578.44, 47,335.98 and 10,787.72

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Solution

The fourth proportional to 31,578.44, 47,335.98 and 10,787.72 is: 16,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.44 : 47,335.98 = 10,787.72 : x
  2. Step 2: Convert to fraction form
    31,578.44/47,335.98 = 10,787.72/x
  3. Step 3: Cross multiply
    31,578.44x = 47,335.98 × 10,787.72
  4. Step 4: Simplify right side
    31,578.44x = 510,647,298.17
  5. Step 5: Solve for x
    x = 510,647,298.17/31,578.44
  6. Step 6: Final answer
    x = 16,170.76

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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.