Home / 26,811.33-40,223.83-18,929.20

Finding the Fourth Proportional to 26,811.33, 40,223.83 and 18,929.20

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Solution

The fourth proportional to 26,811.33, 40,223.83 and 18,929.20 is: 28,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,811.33 : 40,223.83 = 18,929.20 : x
  2. Step 2: Convert to fraction form
    26,811.33/40,223.83 = 18,929.20/x
  3. Step 3: Cross multiply
    26,811.33x = 40,223.83 × 18,929.20
  4. Step 4: Simplify right side
    26,811.33x = 761,404,828.19
  5. Step 5: Solve for x
    x = 761,404,828.19/26,811.33
  6. Step 6: Final answer
    x = 28,398.63

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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.