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Finding the Fourth Proportional to 26,259, 36,237.42 and 19,550.40

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Solution

The fourth proportional to 26,259, 36,237.42 and 19,550.40 is: 26,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,259 : 36,237.42 = 19,550.40 : x
  2. Step 2: Convert to fraction form
    26,259/36,237.42 = 19,550.40/x
  3. Step 3: Cross multiply
    26,259x = 36,237.42 × 19,550.40
  4. Step 4: Simplify right side
    26,259x = 708,456,055.97
  5. Step 5: Solve for x
    x = 708,456,055.97/26,259
  6. Step 6: Final answer
    x = 26,979.55

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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.