Home / 28,871.64-39,827.70-18,242.82

Finding the Fourth Proportional to 28,871.64, 39,827.70 and 18,242.82

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Solution

The fourth proportional to 28,871.64, 39,827.70 and 18,242.82 is: 25,165.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.64 : 39,827.70 = 18,242.82 : x
  2. Step 2: Convert to fraction form
    28,871.64/39,827.70 = 18,242.82/x
  3. Step 3: Cross multiply
    28,871.64x = 39,827.70 × 18,242.82
  4. Step 4: Simplify right side
    28,871.64x = 726,569,562.11
  5. Step 5: Solve for x
    x = 726,569,562.11/28,871.64
  6. Step 6: Final answer
    x = 25,165.51

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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.