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Finding the Fourth Proportional to 26,809.61, 40,210.97 and 7,089.71

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Solution

The fourth proportional to 26,809.61, 40,210.97 and 7,089.71 is: 10,633.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,809.61 : 40,210.97 = 7,089.71 : x
  2. Step 2: Convert to fraction form
    26,809.61/40,210.97 = 7,089.71/x
  3. Step 3: Cross multiply
    26,809.61x = 40,210.97 × 7,089.71
  4. Step 4: Simplify right side
    26,809.61x = 285,083,879.62
  5. Step 5: Solve for x
    x = 285,083,879.62/26,809.61
  6. Step 6: Final answer
    x = 10,633.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.