Home / 26,812.57-40,192.69-12,768.82

Finding the Fourth Proportional to 26,812.57, 40,192.69 and 12,768.82

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Solution

The fourth proportional to 26,812.57, 40,192.69 and 12,768.82 is: 19,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,812.57 : 40,192.69 = 12,768.82 : x
  2. Step 2: Convert to fraction form
    26,812.57/40,192.69 = 12,768.82/x
  3. Step 3: Cross multiply
    26,812.57x = 40,192.69 × 12,768.82
  4. Step 4: Simplify right side
    26,812.57x = 513,213,223.93
  5. Step 5: Solve for x
    x = 513,213,223.93/26,812.57
  6. Step 6: Final answer
    x = 19,140.77

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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.