Home / 20,152.80-30,229.50-7,005.62

Finding the Fourth Proportional to 20,152.80, 30,229.50 and 7,005.62

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Solution

The fourth proportional to 20,152.80, 30,229.50 and 7,005.62 is: 10,508.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.80 : 30,229.50 = 7,005.62 : x
  2. Step 2: Convert to fraction form
    20,152.80/30,229.50 = 7,005.62/x
  3. Step 3: Cross multiply
    20,152.80x = 30,229.50 × 7,005.62
  4. Step 4: Simplify right side
    20,152.80x = 211,776,389.79
  5. Step 5: Solve for x
    x = 211,776,389.79/20,152.80
  6. Step 6: Final answer
    x = 10,508.53

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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.