Home / 20,489.68-30,755.58-10,626.31

Finding the Fourth Proportional to 20,489.68, 30,755.58 and 10,626.31

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Solution

The fourth proportional to 20,489.68, 30,755.58 and 10,626.31 is: 15,950.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489.68 : 30,755.58 = 10,626.31 : x
  2. Step 2: Convert to fraction form
    20,489.68/30,755.58 = 10,626.31/x
  3. Step 3: Cross multiply
    20,489.68x = 30,755.58 × 10,626.31
  4. Step 4: Simplify right side
    20,489.68x = 326,818,327.31
  5. Step 5: Solve for x
    x = 326,818,327.31/20,489.68
  6. Step 6: Final answer
    x = 15,950.39

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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.