Home / 26,879.88-37,088.82-15,699.72

Finding the Fourth Proportional to 26,879.88, 37,088.82 and 15,699.72

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Solution

The fourth proportional to 26,879.88, 37,088.82 and 15,699.72 is: 21,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,879.88 : 37,088.82 = 15,699.72 : x
  2. Step 2: Convert to fraction form
    26,879.88/37,088.82 = 15,699.72/x
  3. Step 3: Cross multiply
    26,879.88x = 37,088.82 × 15,699.72
  4. Step 4: Simplify right side
    26,879.88x = 582,284,089.13
  5. Step 5: Solve for x
    x = 582,284,089.13/26,879.88
  6. Step 6: Final answer
    x = 21,662.45

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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.