Home / 28,200.87-42,301.79-10,678.95

Finding the Fourth Proportional to 28,200.87, 42,301.79 and 10,678.95

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Solution

The fourth proportional to 28,200.87, 42,301.79 and 10,678.95 is: 16,018.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,200.87 : 42,301.79 = 10,678.95 : x
  2. Step 2: Convert to fraction form
    28,200.87/42,301.79 = 10,678.95/x
  3. Step 3: Cross multiply
    28,200.87x = 42,301.79 × 10,678.95
  4. Step 4: Simplify right side
    28,200.87x = 451,738,700.32
  5. Step 5: Solve for x
    x = 451,738,700.32/28,200.87
  6. Step 6: Final answer
    x = 16,018.61

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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.