Home / 28,372.65-39,151.44-16,439.94

Finding the Fourth Proportional to 28,372.65, 39,151.44 and 16,439.94

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Solution

The fourth proportional to 28,372.65, 39,151.44 and 16,439.94 is: 22,685.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.65 : 39,151.44 = 16,439.94 : x
  2. Step 2: Convert to fraction form
    28,372.65/39,151.44 = 16,439.94/x
  3. Step 3: Cross multiply
    28,372.65x = 39,151.44 × 16,439.94
  4. Step 4: Simplify right side
    28,372.65x = 643,647,324.51
  5. Step 5: Solve for x
    x = 643,647,324.51/28,372.65
  6. Step 6: Final answer
    x = 22,685.48

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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.