Home / 26,767.18-40,135.21-10,128.50

Finding the Fourth Proportional to 26,767.18, 40,135.21 and 10,128.50

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Solution

The fourth proportional to 26,767.18, 40,135.21 and 10,128.50 is: 15,186.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,767.18 : 40,135.21 = 10,128.50 : x
  2. Step 2: Convert to fraction form
    26,767.18/40,135.21 = 10,128.50/x
  3. Step 3: Cross multiply
    26,767.18x = 40,135.21 × 10,128.50
  4. Step 4: Simplify right side
    26,767.18x = 406,509,398.99
  5. Step 5: Solve for x
    x = 406,509,398.99/26,767.18
  6. Step 6: Final answer
    x = 15,186.86

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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.