Home / 22,207.36-30,645.12-13,260.80

Finding the Fourth Proportional to 22,207.36, 30,645.12 and 13,260.80

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Solution

The fourth proportional to 22,207.36, 30,645.12 and 13,260.80 is: 18,299.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.36 : 30,645.12 = 13,260.80 : x
  2. Step 2: Convert to fraction form
    22,207.36/30,645.12 = 13,260.80/x
  3. Step 3: Cross multiply
    22,207.36x = 30,645.12 × 13,260.80
  4. Step 4: Simplify right side
    22,207.36x = 406,378,807.30
  5. Step 5: Solve for x
    x = 406,378,807.30/22,207.36
  6. Step 6: Final answer
    x = 18,299.28

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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.