Home / 28,016.69-42,028.11-11,374.31

Finding the Fourth Proportional to 28,016.69, 42,028.11 and 11,374.31

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Solution

The fourth proportional to 28,016.69, 42,028.11 and 11,374.31 is: 17,062.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.69 : 42,028.11 = 11,374.31 : x
  2. Step 2: Convert to fraction form
    28,016.69/42,028.11 = 11,374.31/x
  3. Step 3: Cross multiply
    28,016.69x = 42,028.11 × 11,374.31
  4. Step 4: Simplify right side
    28,016.69x = 478,040,541.71
  5. Step 5: Solve for x
    x = 478,040,541.71/28,016.69
  6. Step 6: Final answer
    x = 17,062.71

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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.