Home / 22,827.78-31,505.47-13,137.04

Finding the Fourth Proportional to 22,827.78, 31,505.47 and 13,137.04

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Solution

The fourth proportional to 22,827.78, 31,505.47 and 13,137.04 is: 18,130.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,827.78 : 31,505.47 = 13,137.04 : x
  2. Step 2: Convert to fraction form
    22,827.78/31,505.47 = 13,137.04/x
  3. Step 3: Cross multiply
    22,827.78x = 31,505.47 × 13,137.04
  4. Step 4: Simplify right side
    22,827.78x = 413,888,508.00
  5. Step 5: Solve for x
    x = 413,888,508.00/22,827.78
  6. Step 6: Final answer
    x = 18,130.91

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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.