Home / 22,891.08-31,589.69-12,682.78

Finding the Fourth Proportional to 22,891.08, 31,589.69 and 12,682.78

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Solution

The fourth proportional to 22,891.08, 31,589.69 and 12,682.78 is: 17,502.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,891.08 : 31,589.69 = 12,682.78 : x
  2. Step 2: Convert to fraction form
    22,891.08/31,589.69 = 12,682.78/x
  3. Step 3: Cross multiply
    22,891.08x = 31,589.69 × 12,682.78
  4. Step 4: Simplify right side
    22,891.08x = 400,645,088.54
  5. Step 5: Solve for x
    x = 400,645,088.54/22,891.08
  6. Step 6: Final answer
    x = 17,502.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.