Home / 28,207.62-42,313.56-9,487.71

Finding the Fourth Proportional to 28,207.62, 42,313.56 and 9,487.71

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Solution

The fourth proportional to 28,207.62, 42,313.56 and 9,487.71 is: 14,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.62 : 42,313.56 = 9,487.71 : x
  2. Step 2: Convert to fraction form
    28,207.62/42,313.56 = 9,487.71/x
  3. Step 3: Cross multiply
    28,207.62x = 42,313.56 × 9,487.71
  4. Step 4: Simplify right side
    28,207.62x = 401,458,786.35
  5. Step 5: Solve for x
    x = 401,458,786.35/28,207.62
  6. Step 6: Final answer
    x = 14,232.28

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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.