Home / 25,940.66-38,911.78-10,145.06

Finding the Fourth Proportional to 25,940.66, 38,911.78 and 10,145.06

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Solution

The fourth proportional to 25,940.66, 38,911.78 and 10,145.06 is: 15,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,940.66 : 38,911.78 = 10,145.06 : x
  2. Step 2: Convert to fraction form
    25,940.66/38,911.78 = 10,145.06/x
  3. Step 3: Cross multiply
    25,940.66x = 38,911.78 × 10,145.06
  4. Step 4: Simplify right side
    25,940.66x = 394,762,342.81
  5. Step 5: Solve for x
    x = 394,762,342.81/25,940.66
  6. Step 6: Final answer
    x = 15,217.90

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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.