Home / 20,646.80-30,970.23-5,064.43

Finding the Fourth Proportional to 20,646.80, 30,970.23 and 5,064.43

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Solution

The fourth proportional to 20,646.80, 30,970.23 and 5,064.43 is: 7,596.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.80 : 30,970.23 = 5,064.43 : x
  2. Step 2: Convert to fraction form
    20,646.80/30,970.23 = 5,064.43/x
  3. Step 3: Cross multiply
    20,646.80x = 30,970.23 × 5,064.43
  4. Step 4: Simplify right side
    20,646.80x = 156,846,523.57
  5. Step 5: Solve for x
    x = 156,846,523.57/20,646.80
  6. Step 6: Final answer
    x = 7,596.65

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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.