Home / 28,280.52-39,027.18-15,705.27

Finding the Fourth Proportional to 28,280.52, 39,027.18 and 15,705.27

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Solution

The fourth proportional to 28,280.52, 39,027.18 and 15,705.27 is: 21,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,280.52 : 39,027.18 = 15,705.27 : x
  2. Step 2: Convert to fraction form
    28,280.52/39,027.18 = 15,705.27/x
  3. Step 3: Cross multiply
    28,280.52x = 39,027.18 × 15,705.27
  4. Step 4: Simplify right side
    28,280.52x = 612,932,399.24
  5. Step 5: Solve for x
    x = 612,932,399.24/28,280.52
  6. Step 6: Final answer
    x = 21,673.31

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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.