Home / 22,291.36-30,758.15-12,726.88

Finding the Fourth Proportional to 22,291.36, 30,758.15 and 12,726.88

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Solution

The fourth proportional to 22,291.36, 30,758.15 and 12,726.88 is: 17,560.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.36 : 30,758.15 = 12,726.88 : x
  2. Step 2: Convert to fraction form
    22,291.36/30,758.15 = 12,726.88/x
  3. Step 3: Cross multiply
    22,291.36x = 30,758.15 × 12,726.88
  4. Step 4: Simplify right side
    22,291.36x = 391,455,238.99
  5. Step 5: Solve for x
    x = 391,455,238.99/22,291.36
  6. Step 6: Final answer
    x = 17,560.85

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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.