Home / 28,230.81-42,346.17-15,579.96

Finding the Fourth Proportional to 28,230.81, 42,346.17 and 15,579.96

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Solution

The fourth proportional to 28,230.81, 42,346.17 and 15,579.96 is: 23,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.81 : 42,346.17 = 15,579.96 : x
  2. Step 2: Convert to fraction form
    28,230.81/42,346.17 = 15,579.96/x
  3. Step 3: Cross multiply
    28,230.81x = 42,346.17 × 15,579.96
  4. Step 4: Simplify right side
    28,230.81x = 659,751,634.75
  5. Step 5: Solve for x
    x = 659,751,634.75/28,230.81
  6. Step 6: Final answer
    x = 23,369.92

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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.