Home / 28,536.68-39,378.48-15,959

Finding the Fourth Proportional to 28,536.68, 39,378.48 and 15,959

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Solution

The fourth proportional to 28,536.68, 39,378.48 and 15,959 is: 22,022.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.68 : 39,378.48 = 15,959 : x
  2. Step 2: Convert to fraction form
    28,536.68/39,378.48 = 15,959/x
  3. Step 3: Cross multiply
    28,536.68x = 39,378.48 × 15,959
  4. Step 4: Simplify right side
    28,536.68x = 628,441,162.32
  5. Step 5: Solve for x
    x = 628,441,162.32/28,536.68
  6. Step 6: Final answer
    x = 22,022.22

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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.