Home / 20,014.92-30,011.76-10,008.72

Finding the Fourth Proportional to 20,014.92, 30,011.76 and 10,008.72

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Solution

The fourth proportional to 20,014.92, 30,011.76 and 10,008.72 is: 15,007.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,014.92 : 30,011.76 = 10,008.72 : x
  2. Step 2: Convert to fraction form
    20,014.92/30,011.76 = 10,008.72/x
  3. Step 3: Cross multiply
    20,014.92x = 30,011.76 × 10,008.72
  4. Step 4: Simplify right side
    20,014.92x = 300,379,302.55
  5. Step 5: Solve for x
    x = 300,379,302.55/20,014.92
  6. Step 6: Final answer
    x = 15,007.77

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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.