Home / 25,767.83-38,827.28-21,190.37

Finding the Fourth Proportional to 25,767.83, 38,827.28 and 21,190.37

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Solution

The fourth proportional to 25,767.83, 38,827.28 and 21,190.37 is: 31,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,767.83 : 38,827.28 = 21,190.37 : x
  2. Step 2: Convert to fraction form
    25,767.83/38,827.28 = 21,190.37/x
  3. Step 3: Cross multiply
    25,767.83x = 38,827.28 × 21,190.37
  4. Step 4: Simplify right side
    25,767.83x = 822,764,274.81
  5. Step 5: Solve for x
    x = 822,764,274.81/25,767.83
  6. Step 6: Final answer
    x = 31,929.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.