Home / 20,661.12-30,966.32-9,552.80

Finding the Fourth Proportional to 20,661.12, 30,966.32 and 9,552.80

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Solution

The fourth proportional to 20,661.12, 30,966.32 and 9,552.80 is: 14,317.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,661.12 : 30,966.32 = 9,552.80 : x
  2. Step 2: Convert to fraction form
    20,661.12/30,966.32 = 9,552.80/x
  3. Step 3: Cross multiply
    20,661.12x = 30,966.32 × 9,552.80
  4. Step 4: Simplify right side
    20,661.12x = 295,815,061.70
  5. Step 5: Solve for x
    x = 295,815,061.70/20,661.12
  6. Step 6: Final answer
    x = 14,317.47

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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.