Home / 28,269.90-39,015.56-16,171.51

Finding the Fourth Proportional to 28,269.90, 39,015.56 and 16,171.51

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Solution

The fourth proportional to 28,269.90, 39,015.56 and 16,171.51 is: 22,318.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,269.90 : 39,015.56 = 16,171.51 : x
  2. Step 2: Convert to fraction form
    28,269.90/39,015.56 = 16,171.51/x
  3. Step 3: Cross multiply
    28,269.90x = 39,015.56 × 16,171.51
  4. Step 4: Simplify right side
    28,269.90x = 630,940,518.70
  5. Step 5: Solve for x
    x = 630,940,518.70/28,269.90
  6. Step 6: Final answer
    x = 22,318.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.