Home / 26,949.12-40,428.16-8,480

Finding the Fourth Proportional to 26,949.12, 40,428.16 and 8,480

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Solution

The fourth proportional to 26,949.12, 40,428.16 and 8,480 is: 12,721.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,949.12 : 40,428.16 = 8,480 : x
  2. Step 2: Convert to fraction form
    26,949.12/40,428.16 = 8,480/x
  3. Step 3: Cross multiply
    26,949.12x = 40,428.16 × 8,480
  4. Step 4: Simplify right side
    26,949.12x = 342,830,796.80
  5. Step 5: Solve for x
    x = 342,830,796.80/26,949.12
  6. Step 6: Final answer
    x = 12,721.41

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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.