Home / 28,648.15-42,972.47-10,874.04

Finding the Fourth Proportional to 28,648.15, 42,972.47 and 10,874.04

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Solution

The fourth proportional to 28,648.15, 42,972.47 and 10,874.04 is: 16,311.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.15 : 42,972.47 = 10,874.04 : x
  2. Step 2: Convert to fraction form
    28,648.15/42,972.47 = 10,874.04/x
  3. Step 3: Cross multiply
    28,648.15x = 42,972.47 × 10,874.04
  4. Step 4: Simplify right side
    28,648.15x = 467,284,485.83
  5. Step 5: Solve for x
    x = 467,284,485.83/28,648.15
  6. Step 6: Final answer
    x = 16,311.16

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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.