Home / 28,104.54-42,122.97-10,320.90

Finding the Fourth Proportional to 28,104.54, 42,122.97 and 10,320.90

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Solution

The fourth proportional to 28,104.54, 42,122.97 and 10,320.90 is: 15,468.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.54 : 42,122.97 = 10,320.90 : x
  2. Step 2: Convert to fraction form
    28,104.54/42,122.97 = 10,320.90/x
  3. Step 3: Cross multiply
    28,104.54x = 42,122.97 × 10,320.90
  4. Step 4: Simplify right side
    28,104.54x = 434,746,961.07
  5. Step 5: Solve for x
    x = 434,746,961.07/28,104.54
  6. Step 6: Final answer
    x = 15,468.92

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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.