Home / 22,857.34-31,542.41-12,785.95

Finding the Fourth Proportional to 22,857.34, 31,542.41 and 12,785.95

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Solution

The fourth proportional to 22,857.34, 31,542.41 and 12,785.95 is: 17,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,857.34 : 31,542.41 = 12,785.95 : x
  2. Step 2: Convert to fraction form
    22,857.34/31,542.41 = 12,785.95/x
  3. Step 3: Cross multiply
    22,857.34x = 31,542.41 × 12,785.95
  4. Step 4: Simplify right side
    22,857.34x = 403,299,748.53
  5. Step 5: Solve for x
    x = 403,299,748.53/22,857.34
  6. Step 6: Final answer
    x = 17,644.21

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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.