Home / 25,972.30-38,987.61-10,400.86

Finding the Fourth Proportional to 25,972.30, 38,987.61 and 10,400.86

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Solution

The fourth proportional to 25,972.30, 38,987.61 and 10,400.86 is: 15,612.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,972.30 : 38,987.61 = 10,400.86 : x
  2. Step 2: Convert to fraction form
    25,972.30/38,987.61 = 10,400.86/x
  3. Step 3: Cross multiply
    25,972.30x = 38,987.61 × 10,400.86
  4. Step 4: Simplify right side
    25,972.30x = 405,504,673.34
  5. Step 5: Solve for x
    x = 405,504,673.34/25,972.30
  6. Step 6: Final answer
    x = 15,612.97

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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.