Home / 25,987.23-38,991.78-10,197.09

Finding the Fourth Proportional to 25,987.23, 38,991.78 and 10,197.09

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Solution

The fourth proportional to 25,987.23, 38,991.78 and 10,197.09 is: 15,299.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,987.23 : 38,991.78 = 10,197.09 : x
  2. Step 2: Convert to fraction form
    25,987.23/38,991.78 = 10,197.09/x
  3. Step 3: Cross multiply
    25,987.23x = 38,991.78 × 10,197.09
  4. Step 4: Simplify right side
    25,987.23x = 397,602,689.92
  5. Step 5: Solve for x
    x = 397,602,689.92/25,987.23
  6. Step 6: Final answer
    x = 15,299.93

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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.