Home / 28,338.06-42,505.55-8,615.08

Finding the Fourth Proportional to 28,338.06, 42,505.55 and 8,615.08

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Solution

The fourth proportional to 28,338.06, 42,505.55 and 8,615.08 is: 12,922.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.06 : 42,505.55 = 8,615.08 : x
  2. Step 2: Convert to fraction form
    28,338.06/42,505.55 = 8,615.08/x
  3. Step 3: Cross multiply
    28,338.06x = 42,505.55 × 8,615.08
  4. Step 4: Simplify right side
    28,338.06x = 366,188,458.09
  5. Step 5: Solve for x
    x = 366,188,458.09/28,338.06
  6. Step 6: Final answer
    x = 12,922.14

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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.