Home / 22,540.08-31,092.80-13,107.60

Finding the Fourth Proportional to 22,540.08, 31,092.80 and 13,107.60

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Solution

The fourth proportional to 22,540.08, 31,092.80 and 13,107.60 is: 18,081.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,540.08 : 31,092.80 = 13,107.60 : x
  2. Step 2: Convert to fraction form
    22,540.08/31,092.80 = 13,107.60/x
  3. Step 3: Cross multiply
    22,540.08x = 31,092.80 × 13,107.60
  4. Step 4: Simplify right side
    22,540.08x = 407,551,985.28
  5. Step 5: Solve for x
    x = 407,551,985.28/22,540.08
  6. Step 6: Final answer
    x = 18,081.21

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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.