Home / 28,479.90-39,016.82-27,415.05

Finding the Fourth Proportional to 28,479.90, 39,016.82 and 27,415.05

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Solution

The fourth proportional to 28,479.90, 39,016.82 and 27,415.05 is: 37,557.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.90 : 39,016.82 = 27,415.05 : x
  2. Step 2: Convert to fraction form
    28,479.90/39,016.82 = 27,415.05/x
  3. Step 3: Cross multiply
    28,479.90x = 39,016.82 × 27,415.05
  4. Step 4: Simplify right side
    28,479.90x = 1,069,647,934.07
  5. Step 5: Solve for x
    x = 1,069,647,934.07/28,479.90
  6. Step 6: Final answer
    x = 37,557.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.