Home / 20,402.42-30,589.04-10,021.46

Finding the Fourth Proportional to 20,402.42, 30,589.04 and 10,021.46

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Solution

The fourth proportional to 20,402.42, 30,589.04 and 10,021.46 is: 15,025.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402.42 : 30,589.04 = 10,021.46 : x
  2. Step 2: Convert to fraction form
    20,402.42/30,589.04 = 10,021.46/x
  3. Step 3: Cross multiply
    20,402.42x = 30,589.04 × 10,021.46
  4. Step 4: Simplify right side
    20,402.42x = 306,546,712.91
  5. Step 5: Solve for x
    x = 306,546,712.91/20,402.42
  6. Step 6: Final answer
    x = 15,025.02

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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.