Home / 20,884.62-31,301.01-9,776.82

Finding the Fourth Proportional to 20,884.62, 31,301.01 and 9,776.82

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Solution

The fourth proportional to 20,884.62, 31,301.01 and 9,776.82 is: 14,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,884.62 : 31,301.01 = 9,776.82 : x
  2. Step 2: Convert to fraction form
    20,884.62/31,301.01 = 9,776.82/x
  3. Step 3: Cross multiply
    20,884.62x = 31,301.01 × 9,776.82
  4. Step 4: Simplify right side
    20,884.62x = 306,024,340.59
  5. Step 5: Solve for x
    x = 306,024,340.59/20,884.62
  6. Step 6: Final answer
    x = 14,653.10

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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.