Home / 26,981.79-40,468.74-19,520.93

Finding the Fourth Proportional to 26,981.79, 40,468.74 and 19,520.93

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Solution

The fourth proportional to 26,981.79, 40,468.74 and 19,520.93 is: 29,278.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,981.79 : 40,468.74 = 19,520.93 : x
  2. Step 2: Convert to fraction form
    26,981.79/40,468.74 = 19,520.93/x
  3. Step 3: Cross multiply
    26,981.79x = 40,468.74 × 19,520.93
  4. Step 4: Simplify right side
    26,981.79x = 789,987,343.12
  5. Step 5: Solve for x
    x = 789,987,343.12/26,981.79
  6. Step 6: Final answer
    x = 29,278.54

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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.