Home / 28,092.05-42,138.08-7,315.55

Finding the Fourth Proportional to 28,092.05, 42,138.08 and 7,315.55

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Solution

The fourth proportional to 28,092.05, 42,138.08 and 7,315.55 is: 10,973.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092.05 : 42,138.08 = 7,315.55 : x
  2. Step 2: Convert to fraction form
    28,092.05/42,138.08 = 7,315.55/x
  3. Step 3: Cross multiply
    28,092.05x = 42,138.08 × 7,315.55
  4. Step 4: Simplify right side
    28,092.05x = 308,263,231.14
  5. Step 5: Solve for x
    x = 308,263,231.14/28,092.05
  6. Step 6: Final answer
    x = 10,973.33

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Similar ratio
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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.