Home / 21,269.25-31,901.44-5,688.09

Finding the Fourth Proportional to 21,269.25, 31,901.44 and 5,688.09

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Solution

The fourth proportional to 21,269.25, 31,901.44 and 5,688.09 is: 8,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.25 : 31,901.44 = 5,688.09 : x
  2. Step 2: Convert to fraction form
    21,269.25/31,901.44 = 5,688.09/x
  3. Step 3: Cross multiply
    21,269.25x = 31,901.44 × 5,688.09
  4. Step 4: Simplify right side
    21,269.25x = 181,458,261.85
  5. Step 5: Solve for x
    x = 181,458,261.85/21,269.25
  6. Step 6: Final answer
    x = 8,531.48

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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.