Home / 22,585.82-31,167.12-12,513.66

Finding the Fourth Proportional to 22,585.82, 31,167.12 and 12,513.66

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Solution

The fourth proportional to 22,585.82, 31,167.12 and 12,513.66 is: 17,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,585.82 : 31,167.12 = 12,513.66 : x
  2. Step 2: Convert to fraction form
    22,585.82/31,167.12 = 12,513.66/x
  3. Step 3: Cross multiply
    22,585.82x = 31,167.12 × 12,513.66
  4. Step 4: Simplify right side
    22,585.82x = 390,014,664.94
  5. Step 5: Solve for x
    x = 390,014,664.94/22,585.82
  6. Step 6: Final answer
    x = 17,268.12

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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.