Home / 26,865.69-40,300.56-7,143.81

Finding the Fourth Proportional to 26,865.69, 40,300.56 and 7,143.81

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Solution

The fourth proportional to 26,865.69, 40,300.56 and 7,143.81 is: 10,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,865.69 : 40,300.56 = 7,143.81 : x
  2. Step 2: Convert to fraction form
    26,865.69/40,300.56 = 7,143.81/x
  3. Step 3: Cross multiply
    26,865.69x = 40,300.56 × 7,143.81
  4. Step 4: Simplify right side
    26,865.69x = 287,899,543.53
  5. Step 5: Solve for x
    x = 287,899,543.53/26,865.69
  6. Step 6: Final answer
    x = 10,716.25

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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.