Home / 38,268.71-52,819.39-21,278.92

Finding the Fourth Proportional to 38,268.71, 52,819.39 and 21,278.92

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Solution

The fourth proportional to 38,268.71, 52,819.39 and 21,278.92 is: 29,369.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,268.71 : 52,819.39 = 21,278.92 : x
  2. Step 2: Convert to fraction form
    38,268.71/52,819.39 = 21,278.92/x
  3. Step 3: Cross multiply
    38,268.71x = 52,819.39 × 21,278.92
  4. Step 4: Simplify right side
    38,268.71x = 1,123,939,389.01
  5. Step 5: Solve for x
    x = 1,123,939,389.01/38,268.71
  6. Step 6: Final answer
    x = 29,369.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.