Home / 20,329.72-30,498.85-7,003.92

Finding the Fourth Proportional to 20,329.72, 30,498.85 and 7,003.92

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Solution

The fourth proportional to 20,329.72, 30,498.85 and 7,003.92 is: 10,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.72 : 30,498.85 = 7,003.92 : x
  2. Step 2: Convert to fraction form
    20,329.72/30,498.85 = 7,003.92/x
  3. Step 3: Cross multiply
    20,329.72x = 30,498.85 × 7,003.92
  4. Step 4: Simplify right side
    20,329.72x = 213,611,669.76
  5. Step 5: Solve for x
    x = 213,611,669.76/20,329.72
  6. Step 6: Final answer
    x = 10,507.36

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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.