Home / 28,734.12-39,671.61-18,529.72

Finding the Fourth Proportional to 28,734.12, 39,671.61 and 18,529.72

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Solution

The fourth proportional to 28,734.12, 39,671.61 and 18,529.72 is: 25,582.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,734.12 : 39,671.61 = 18,529.72 : x
  2. Step 2: Convert to fraction form
    28,734.12/39,671.61 = 18,529.72/x
  3. Step 3: Cross multiply
    28,734.12x = 39,671.61 × 18,529.72
  4. Step 4: Simplify right side
    28,734.12x = 735,103,726.07
  5. Step 5: Solve for x
    x = 735,103,726.07/28,734.12
  6. Step 6: Final answer
    x = 25,582.96

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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.