Home / 22,317.78-30,797.10-12,886.14

Finding the Fourth Proportional to 22,317.78, 30,797.10 and 12,886.14

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Solution

The fourth proportional to 22,317.78, 30,797.10 and 12,886.14 is: 17,782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,317.78 : 30,797.10 = 12,886.14 : x
  2. Step 2: Convert to fraction form
    22,317.78/30,797.10 = 12,886.14/x
  3. Step 3: Cross multiply
    22,317.78x = 30,797.10 × 12,886.14
  4. Step 4: Simplify right side
    22,317.78x = 396,855,742.19
  5. Step 5: Solve for x
    x = 396,855,742.19/22,317.78
  6. Step 6: Final answer
    x = 17,782.04

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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.