Home / 45,329.60-68,016.68-20,387.27

Finding the Fourth Proportional to 45,329.60, 68,016.68 and 20,387.27

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Solution

The fourth proportional to 45,329.60, 68,016.68 and 20,387.27 is: 30,590.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,329.60 : 68,016.68 = 20,387.27 : x
  2. Step 2: Convert to fraction form
    45,329.60/68,016.68 = 20,387.27/x
  3. Step 3: Cross multiply
    45,329.60x = 68,016.68 × 20,387.27
  4. Step 4: Simplify right side
    45,329.60x = 1,386,674,640.67
  5. Step 5: Solve for x
    x = 1,386,674,640.67/45,329.60
  6. Step 6: Final answer
    x = 30,590.93

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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.