Home / 28,727.24-39,640.75-17,970.04

Finding the Fourth Proportional to 28,727.24, 39,640.75 and 17,970.04

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Solution

The fourth proportional to 28,727.24, 39,640.75 and 17,970.04 is: 24,796.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727.24 : 39,640.75 = 17,970.04 : x
  2. Step 2: Convert to fraction form
    28,727.24/39,640.75 = 17,970.04/x
  3. Step 3: Cross multiply
    28,727.24x = 39,640.75 × 17,970.04
  4. Step 4: Simplify right side
    28,727.24x = 712,345,719.10
  5. Step 5: Solve for x
    x = 712,345,719.10/28,727.24
  6. Step 6: Final answer
    x = 24,796.87

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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.