Home / 20,669.33-31,000.67-5,672.95

Finding the Fourth Proportional to 20,669.33, 31,000.67 and 5,672.95

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Solution

The fourth proportional to 20,669.33, 31,000.67 and 5,672.95 is: 8,508.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.33 : 31,000.67 = 5,672.95 : x
  2. Step 2: Convert to fraction form
    20,669.33/31,000.67 = 5,672.95/x
  3. Step 3: Cross multiply
    20,669.33x = 31,000.67 × 5,672.95
  4. Step 4: Simplify right side
    20,669.33x = 175,865,095.87
  5. Step 5: Solve for x
    x = 175,865,095.87/20,669.33
  6. Step 6: Final answer
    x = 8,508.50

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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.