Home / 28,143.99-42,204.31-10,375.66

Finding the Fourth Proportional to 28,143.99, 42,204.31 and 10,375.66

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Solution

The fourth proportional to 28,143.99, 42,204.31 and 10,375.66 is: 15,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143.99 : 42,204.31 = 10,375.66 : x
  2. Step 2: Convert to fraction form
    28,143.99/42,204.31 = 10,375.66/x
  3. Step 3: Cross multiply
    28,143.99x = 42,204.31 × 10,375.66
  4. Step 4: Simplify right side
    28,143.99x = 437,897,745.79
  5. Step 5: Solve for x
    x = 437,897,745.79/28,143.99
  6. Step 6: Final answer
    x = 15,559.19

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1.5x scale

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.