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Finding the Fourth Proportional to 27,155.40, 40,703.40 and 9,616.20

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Solution

The fourth proportional to 27,155.40, 40,703.40 and 9,616.20 is: 14,413.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155.40 : 40,703.40 = 9,616.20 : x
  2. Step 2: Convert to fraction form
    27,155.40/40,703.40 = 9,616.20/x
  3. Step 3: Cross multiply
    27,155.40x = 40,703.40 × 9,616.20
  4. Step 4: Simplify right side
    27,155.40x = 391,412,035.08
  5. Step 5: Solve for x
    x = 391,412,035.08/27,155.40
  6. Step 6: Final answer
    x = 14,413.78

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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.