Home / 28,340.31-39,110.36-15,593.82

Finding the Fourth Proportional to 28,340.31, 39,110.36 and 15,593.82

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Solution

The fourth proportional to 28,340.31, 39,110.36 and 15,593.82 is: 21,519.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340.31 : 39,110.36 = 15,593.82 : x
  2. Step 2: Convert to fraction form
    28,340.31/39,110.36 = 15,593.82/x
  3. Step 3: Cross multiply
    28,340.31x = 39,110.36 × 15,593.82
  4. Step 4: Simplify right side
    28,340.31x = 609,879,952.96
  5. Step 5: Solve for x
    x = 609,879,952.96/28,340.31
  6. Step 6: Final answer
    x = 21,519.88

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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.