Home / 22,197.15-30,631.32-13,240.08

Finding the Fourth Proportional to 22,197.15, 30,631.32 and 13,240.08

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Solution

The fourth proportional to 22,197.15, 30,631.32 and 13,240.08 is: 18,270.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,197.15 : 30,631.32 = 13,240.08 : x
  2. Step 2: Convert to fraction form
    22,197.15/30,631.32 = 13,240.08/x
  3. Step 3: Cross multiply
    22,197.15x = 30,631.32 × 13,240.08
  4. Step 4: Simplify right side
    22,197.15x = 405,561,127.31
  5. Step 5: Solve for x
    x = 405,561,127.31/22,197.15
  6. Step 6: Final answer
    x = 18,270.86

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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.