Home / 20,329.17-30,473.29-9,783.78

Finding the Fourth Proportional to 20,329.17, 30,473.29 and 9,783.78

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Solution

The fourth proportional to 20,329.17, 30,473.29 and 9,783.78 is: 14,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.17 : 30,473.29 = 9,783.78 : x
  2. Step 2: Convert to fraction form
    20,329.17/30,473.29 = 9,783.78/x
  3. Step 3: Cross multiply
    20,329.17x = 30,473.29 × 9,783.78
  4. Step 4: Simplify right side
    20,329.17x = 298,143,965.24
  5. Step 5: Solve for x
    x = 298,143,965.24/20,329.17
  6. Step 6: Final answer
    x = 14,665.82

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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.