Home / 25,448.11-38,177.70-7,919.35

Finding the Fourth Proportional to 25,448.11, 38,177.70 and 7,919.35

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Solution

The fourth proportional to 25,448.11, 38,177.70 and 7,919.35 is: 11,880.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,448.11 : 38,177.70 = 7,919.35 : x
  2. Step 2: Convert to fraction form
    25,448.11/38,177.70 = 7,919.35/x
  3. Step 3: Cross multiply
    25,448.11x = 38,177.70 × 7,919.35
  4. Step 4: Simplify right side
    25,448.11x = 302,342,568.50
  5. Step 5: Solve for x
    x = 302,342,568.50/25,448.11
  6. Step 6: Final answer
    x = 11,880.75

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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.