Home / 28,171.74-42,250.69-9,451.36

Finding the Fourth Proportional to 28,171.74, 42,250.69 and 9,451.36

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Solution

The fourth proportional to 28,171.74, 42,250.69 and 9,451.36 is: 14,174.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.74 : 42,250.69 = 9,451.36 : x
  2. Step 2: Convert to fraction form
    28,171.74/42,250.69 = 9,451.36/x
  3. Step 3: Cross multiply
    28,171.74x = 42,250.69 × 9,451.36
  4. Step 4: Simplify right side
    28,171.74x = 399,326,281.82
  5. Step 5: Solve for x
    x = 399,326,281.82/28,171.74
  6. Step 6: Final answer
    x = 14,174.71

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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.