Home / 38,850.71-58,288.28-13,890.15

Finding the Fourth Proportional to 38,850.71, 58,288.28 and 13,890.15

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Solution

The fourth proportional to 38,850.71, 58,288.28 and 13,890.15 is: 20,839.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,850.71 : 58,288.28 = 13,890.15 : x
  2. Step 2: Convert to fraction form
    38,850.71/58,288.28 = 13,890.15/x
  3. Step 3: Cross multiply
    38,850.71x = 58,288.28 × 13,890.15
  4. Step 4: Simplify right side
    38,850.71x = 809,632,882.99
  5. Step 5: Solve for x
    x = 809,632,882.99/38,850.71
  6. Step 6: Final answer
    x = 20,839.59

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1.5x scale

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.