Home / 28,160.16-38,879.36-18,092.48

Finding the Fourth Proportional to 28,160.16, 38,879.36 and 18,092.48

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Solution

The fourth proportional to 28,160.16, 38,879.36 and 18,092.48 is: 24,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160.16 : 38,879.36 = 18,092.48 : x
  2. Step 2: Convert to fraction form
    28,160.16/38,879.36 = 18,092.48/x
  3. Step 3: Cross multiply
    28,160.16x = 38,879.36 × 18,092.48
  4. Step 4: Simplify right side
    28,160.16x = 703,424,043.21
  5. Step 5: Solve for x
    x = 703,424,043.21/28,160.16
  6. Step 6: Final answer
    x = 24,979.41

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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.