Home / 22,857.88-31,542.38-12,784.57

Finding the Fourth Proportional to 22,857.88, 31,542.38 and 12,784.57

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Solution

The fourth proportional to 22,857.88, 31,542.38 and 12,784.57 is: 17,641.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,857.88 : 31,542.38 = 12,784.57 : x
  2. Step 2: Convert to fraction form
    22,857.88/31,542.38 = 12,784.57/x
  3. Step 3: Cross multiply
    22,857.88x = 31,542.38 × 12,784.57
  4. Step 4: Simplify right side
    22,857.88x = 403,255,765.08
  5. Step 5: Solve for x
    x = 403,255,765.08/22,857.88
  6. Step 6: Final answer
    x = 17,641.87

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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.