Home / 20,728.58-31,097.63-5,937.62

Finding the Fourth Proportional to 20,728.58, 31,097.63 and 5,937.62

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Solution

The fourth proportional to 20,728.58, 31,097.63 and 5,937.62 is: 8,907.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728.58 : 31,097.63 = 5,937.62 : x
  2. Step 2: Convert to fraction form
    20,728.58/31,097.63 = 5,937.62/x
  3. Step 3: Cross multiply
    20,728.58x = 31,097.63 × 5,937.62
  4. Step 4: Simplify right side
    20,728.58x = 184,645,769.20
  5. Step 5: Solve for x
    x = 184,645,769.20/20,728.58
  6. Step 6: Final answer
    x = 8,907.79

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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.