Home / 22,940.13-31,657.71-13,379.75

Finding the Fourth Proportional to 22,940.13, 31,657.71 and 13,379.75

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Solution

The fourth proportional to 22,940.13, 31,657.71 and 13,379.75 is: 18,464.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,940.13 : 31,657.71 = 13,379.75 : x
  2. Step 2: Convert to fraction form
    22,940.13/31,657.71 = 13,379.75/x
  3. Step 3: Cross multiply
    22,940.13x = 31,657.71 × 13,379.75
  4. Step 4: Simplify right side
    22,940.13x = 423,572,087.08
  5. Step 5: Solve for x
    x = 423,572,087.08/22,940.13
  6. Step 6: Final answer
    x = 18,464.24

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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.