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Finding the Fourth Proportional to 20,030.22, 30,073.01 and 10,176.44

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Solution

The fourth proportional to 20,030.22, 30,073.01 and 10,176.44 is: 15,278.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.22 : 30,073.01 = 10,176.44 : x
  2. Step 2: Convert to fraction form
    20,030.22/30,073.01 = 10,176.44/x
  3. Step 3: Cross multiply
    20,030.22x = 30,073.01 × 10,176.44
  4. Step 4: Simplify right side
    20,030.22x = 306,035,980.64
  5. Step 5: Solve for x
    x = 306,035,980.64/20,030.22
  6. Step 6: Final answer
    x = 15,278.71

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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.