Home / 22,312.08-30,791.64-13,357.87

Finding the Fourth Proportional to 22,312.08, 30,791.64 and 13,357.87

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Solution

The fourth proportional to 22,312.08, 30,791.64 and 13,357.87 is: 18,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.08 : 30,791.64 = 13,357.87 : x
  2. Step 2: Convert to fraction form
    22,312.08/30,791.64 = 13,357.87/x
  3. Step 3: Cross multiply
    22,312.08x = 30,791.64 × 13,357.87
  4. Step 4: Simplify right side
    22,312.08x = 411,310,724.21
  5. Step 5: Solve for x
    x = 411,310,724.21/22,312.08
  6. Step 6: Final answer
    x = 18,434.44

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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.