Home / 28,366.25-42,556.21-8,643.61

Finding the Fourth Proportional to 28,366.25, 42,556.21 and 8,643.61

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Solution

The fourth proportional to 28,366.25, 42,556.21 and 8,643.61 is: 12,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.25 : 42,556.21 = 8,643.61 : x
  2. Step 2: Convert to fraction form
    28,366.25/42,556.21 = 8,643.61/x
  3. Step 3: Cross multiply
    28,366.25x = 42,556.21 × 8,643.61
  4. Step 4: Simplify right side
    28,366.25x = 367,839,338.21
  5. Step 5: Solve for x
    x = 367,839,338.21/28,366.25
  6. Step 6: Final answer
    x = 12,967.50

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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.