Home / 25,987.45-38,983.36-10,191.33

Finding the Fourth Proportional to 25,987.45, 38,983.36 and 10,191.33

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Solution

The fourth proportional to 25,987.45, 38,983.36 and 10,191.33 is: 15,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,987.45 : 38,983.36 = 10,191.33 : x
  2. Step 2: Convert to fraction form
    25,987.45/38,983.36 = 10,191.33/x
  3. Step 3: Cross multiply
    25,987.45x = 38,983.36 × 10,191.33
  4. Step 4: Simplify right side
    25,987.45x = 397,292,468.81
  5. Step 5: Solve for x
    x = 397,292,468.81/25,987.45
  6. Step 6: Final answer
    x = 15,287.86

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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.