Home / 28,580.27-42,871.71-13,801.61

Finding the Fourth Proportional to 28,580.27, 42,871.71 and 13,801.61

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Solution

The fourth proportional to 28,580.27, 42,871.71 and 13,801.61 is: 20,703.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.27 : 42,871.71 = 13,801.61 : x
  2. Step 2: Convert to fraction form
    28,580.27/42,871.71 = 13,801.61/x
  3. Step 3: Cross multiply
    28,580.27x = 42,871.71 × 13,801.61
  4. Step 4: Simplify right side
    28,580.27x = 591,698,407.09
  5. Step 5: Solve for x
    x = 591,698,407.09/28,580.27
  6. Step 6: Final answer
    x = 20,703.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.