Home / 22,871.28-31,563.60-13,917.36

Finding the Fourth Proportional to 22,871.28, 31,563.60 and 13,917.36

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Solution

The fourth proportional to 22,871.28, 31,563.60 and 13,917.36 is: 19,206.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,871.28 : 31,563.60 = 13,917.36 : x
  2. Step 2: Convert to fraction form
    22,871.28/31,563.60 = 13,917.36/x
  3. Step 3: Cross multiply
    22,871.28x = 31,563.60 × 13,917.36
  4. Step 4: Simplify right side
    22,871.28x = 439,281,984.10
  5. Step 5: Solve for x
    x = 439,281,984.10/22,871.28
  6. Step 6: Final answer
    x = 19,206.71

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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.