Home / 20,329.56-30,470.04-11,552.40

Finding the Fourth Proportional to 20,329.56, 30,470.04 and 11,552.40

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Solution

The fourth proportional to 20,329.56, 30,470.04 and 11,552.40 is: 17,314.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.56 : 30,470.04 = 11,552.40 : x
  2. Step 2: Convert to fraction form
    20,329.56/30,470.04 = 11,552.40/x
  3. Step 3: Cross multiply
    20,329.56x = 30,470.04 × 11,552.40
  4. Step 4: Simplify right side
    20,329.56x = 352,002,090.10
  5. Step 5: Solve for x
    x = 352,002,090.10/20,329.56
  6. Step 6: Final answer
    x = 17,314.79

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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.