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Finding the Fourth Proportional to 22,187.08, 30,612.90 and 13,799.08

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Solution

The fourth proportional to 22,187.08, 30,612.90 and 13,799.08 is: 19,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.08 : 30,612.90 = 13,799.08 : x
  2. Step 2: Convert to fraction form
    22,187.08/30,612.90 = 13,799.08/x
  3. Step 3: Cross multiply
    22,187.08x = 30,612.90 × 13,799.08
  4. Step 4: Simplify right side
    22,187.08x = 422,429,856.13
  5. Step 5: Solve for x
    x = 422,429,856.13/22,187.08
  6. Step 6: Final answer
    x = 19,039.45

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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.