Home / 28,039.60-38,694.50-15,464.34

Finding the Fourth Proportional to 28,039.60, 38,694.50 and 15,464.34

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Solution

The fourth proportional to 28,039.60, 38,694.50 and 15,464.34 is: 21,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.60 : 38,694.50 = 15,464.34 : x
  2. Step 2: Convert to fraction form
    28,039.60/38,694.50 = 15,464.34/x
  3. Step 3: Cross multiply
    28,039.60x = 38,694.50 × 15,464.34
  4. Step 4: Simplify right side
    28,039.60x = 598,384,904.13
  5. Step 5: Solve for x
    x = 598,384,904.13/28,039.60
  6. Step 6: Final answer
    x = 21,340.71

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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.