Home / 28,414.91-39,203.05-18,350.16

Finding the Fourth Proportional to 28,414.91, 39,203.05 and 18,350.16

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Solution

The fourth proportional to 28,414.91, 39,203.05 and 18,350.16 is: 25,317.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,414.91 : 39,203.05 = 18,350.16 : x
  2. Step 2: Convert to fraction form
    28,414.91/39,203.05 = 18,350.16/x
  3. Step 3: Cross multiply
    28,414.91x = 39,203.05 × 18,350.16
  4. Step 4: Simplify right side
    28,414.91x = 719,382,239.99
  5. Step 5: Solve for x
    x = 719,382,239.99/28,414.91
  6. Step 6: Final answer
    x = 25,317.07

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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.