Home / 27,854.50-38,441.27-15,917.58

Finding the Fourth Proportional to 27,854.50, 38,441.27 and 15,917.58

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Solution

The fourth proportional to 27,854.50, 38,441.27 and 15,917.58 is: 21,967.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,854.50 : 38,441.27 = 15,917.58 : x
  2. Step 2: Convert to fraction form
    27,854.50/38,441.27 = 15,917.58/x
  3. Step 3: Cross multiply
    27,854.50x = 38,441.27 × 15,917.58
  4. Step 4: Simplify right side
    27,854.50x = 611,891,940.78
  5. Step 5: Solve for x
    x = 611,891,940.78/27,854.50
  6. Step 6: Final answer
    x = 21,967.44

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