Home / 28,683.71-39,578.87-17,927.31

Finding the Fourth Proportional to 28,683.71, 39,578.87 and 17,927.31

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Solution

The fourth proportional to 28,683.71, 39,578.87 and 17,927.31 is: 24,736.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,683.71 : 39,578.87 = 17,927.31 : x
  2. Step 2: Convert to fraction form
    28,683.71/39,578.87 = 17,927.31/x
  3. Step 3: Cross multiply
    28,683.71x = 39,578.87 × 17,927.31
  4. Step 4: Simplify right side
    28,683.71x = 709,542,716.76
  5. Step 5: Solve for x
    x = 709,542,716.76/28,683.71
  6. Step 6: Final answer
    x = 24,736.79

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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.