Home / 25,989.57-38,987.41-9,117.43

Finding the Fourth Proportional to 25,989.57, 38,987.41 and 9,117.43

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Solution

The fourth proportional to 25,989.57, 38,987.41 and 9,117.43 is: 13,677.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,989.57 : 38,987.41 = 9,117.43 : x
  2. Step 2: Convert to fraction form
    25,989.57/38,987.41 = 9,117.43/x
  3. Step 3: Cross multiply
    25,989.57x = 38,987.41 × 9,117.43
  4. Step 4: Simplify right side
    25,989.57x = 355,464,786.62
  5. Step 5: Solve for x
    x = 355,464,786.62/25,989.57
  6. Step 6: Final answer
    x = 13,677.21

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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.