Home / 28,108.80-42,163.20-10,582.56

Finding the Fourth Proportional to 28,108.80, 42,163.20 and 10,582.56

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Solution

The fourth proportional to 28,108.80, 42,163.20 and 10,582.56 is: 15,873.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.80 : 42,163.20 = 10,582.56 : x
  2. Step 2: Convert to fraction form
    28,108.80/42,163.20 = 10,582.56/x
  3. Step 3: Cross multiply
    28,108.80x = 42,163.20 × 10,582.56
  4. Step 4: Simplify right side
    28,108.80x = 446,194,593.79
  5. Step 5: Solve for x
    x = 446,194,593.79/28,108.80
  6. Step 6: Final answer
    x = 15,873.84

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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.