Home / 19,961.43-29,947.61-15,815.31

Finding the Fourth Proportional to 19,961.43, 29,947.61 and 15,815.31

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Solution

The fourth proportional to 19,961.43, 29,947.61 and 15,815.31 is: 23,727.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.43 : 29,947.61 = 15,815.31 : x
  2. Step 2: Convert to fraction form
    19,961.43/29,947.61 = 15,815.31/x
  3. Step 3: Cross multiply
    19,961.43x = 29,947.61 × 15,815.31
  4. Step 4: Simplify right side
    19,961.43x = 473,630,507.09
  5. Step 5: Solve for x
    x = 473,630,507.09/19,961.43
  6. Step 6: Final answer
    x = 23,727.29

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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.