Home / 25,367.15-35,020.62-18,991.43

Finding the Fourth Proportional to 25,367.15, 35,020.62 and 18,991.43

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Solution

The fourth proportional to 25,367.15, 35,020.62 and 18,991.43 is: 26,218.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,367.15 : 35,020.62 = 18,991.43 : x
  2. Step 2: Convert to fraction form
    25,367.15/35,020.62 = 18,991.43/x
  3. Step 3: Cross multiply
    25,367.15x = 35,020.62 × 18,991.43
  4. Step 4: Simplify right side
    25,367.15x = 665,091,653.29
  5. Step 5: Solve for x
    x = 665,091,653.29/25,367.15
  6. Step 6: Final answer
    x = 26,218.62

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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.