Home / 28,278.87-42,095.03-27,858.48

Finding the Fourth Proportional to 28,278.87, 42,095.03 and 27,858.48

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Solution

The fourth proportional to 28,278.87, 42,095.03 and 27,858.48 is: 41,469.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.87 : 42,095.03 = 27,858.48 : x
  2. Step 2: Convert to fraction form
    28,278.87/42,095.03 = 27,858.48/x
  3. Step 3: Cross multiply
    28,278.87x = 42,095.03 × 27,858.48
  4. Step 4: Simplify right side
    28,278.87x = 1,172,703,412.06
  5. Step 5: Solve for x
    x = 1,172,703,412.06/28,278.87
  6. Step 6: Final answer
    x = 41,469.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.