Home / 31,524.62-47,302.05-21,115.58

Finding the Fourth Proportional to 31,524.62, 47,302.05 and 21,115.58

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Solution

The fourth proportional to 31,524.62, 47,302.05 and 21,115.58 is: 31,683.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,524.62 : 47,302.05 = 21,115.58 : x
  2. Step 2: Convert to fraction form
    31,524.62/47,302.05 = 21,115.58/x
  3. Step 3: Cross multiply
    31,524.62x = 47,302.05 × 21,115.58
  4. Step 4: Simplify right side
    31,524.62x = 998,810,220.94
  5. Step 5: Solve for x
    x = 998,810,220.94/31,524.62
  6. Step 6: Final answer
    x = 31,683.50

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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.