Home / 28,635.18-39,514.56-15,887.82

Finding the Fourth Proportional to 28,635.18, 39,514.56 and 15,887.82

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Solution

The fourth proportional to 28,635.18, 39,514.56 and 15,887.82 is: 21,924.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,635.18 : 39,514.56 = 15,887.82 : x
  2. Step 2: Convert to fraction form
    28,635.18/39,514.56 = 15,887.82/x
  3. Step 3: Cross multiply
    28,635.18x = 39,514.56 × 15,887.82
  4. Step 4: Simplify right side
    28,635.18x = 627,800,216.66
  5. Step 5: Solve for x
    x = 627,800,216.66/28,635.18
  6. Step 6: Final answer
    x = 21,924.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.