Home / 28,093.58-38,769.19-15,346.85

Finding the Fourth Proportional to 28,093.58, 38,769.19 and 15,346.85

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Solution

The fourth proportional to 28,093.58, 38,769.19 and 15,346.85 is: 21,178.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,093.58 : 38,769.19 = 15,346.85 : x
  2. Step 2: Convert to fraction form
    28,093.58/38,769.19 = 15,346.85/x
  3. Step 3: Cross multiply
    28,093.58x = 38,769.19 × 15,346.85
  4. Step 4: Simplify right side
    28,093.58x = 594,984,943.55
  5. Step 5: Solve for x
    x = 594,984,943.55/28,093.58
  6. Step 6: Final answer
    x = 21,178.68

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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.