Home / 28,269.50-39,009.94-15,693.26

Finding the Fourth Proportional to 28,269.50, 39,009.94 and 15,693.26

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Solution

The fourth proportional to 28,269.50, 39,009.94 and 15,693.26 is: 21,655.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,269.50 : 39,009.94 = 15,693.26 : x
  2. Step 2: Convert to fraction form
    28,269.50/39,009.94 = 15,693.26/x
  3. Step 3: Cross multiply
    28,269.50x = 39,009.94 × 15,693.26
  4. Step 4: Simplify right side
    28,269.50x = 612,193,131.00
  5. Step 5: Solve for x
    x = 612,193,131.00/28,269.50
  6. Step 6: Final answer
    x = 21,655.61

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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.