Home / 13,888.91-20,836.61-4,028.38

Finding the Fourth Proportional to 13,888.91, 20,836.61 and 4,028.38

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Solution

The fourth proportional to 13,888.91, 20,836.61 and 4,028.38 is: 6,043.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.91 : 20,836.61 = 4,028.38 : x
  2. Step 2: Convert to fraction form
    13,888.91/20,836.61 = 4,028.38/x
  3. Step 3: Cross multiply
    13,888.91x = 20,836.61 × 4,028.38
  4. Step 4: Simplify right side
    13,888.91x = 83,937,725.86
  5. Step 5: Solve for x
    x = 83,937,725.86/13,888.91
  6. Step 6: Final answer
    x = 6,043.51

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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.