Home / 25,439.69-38,161.36-6,719.54

Finding the Fourth Proportional to 25,439.69, 38,161.36 and 6,719.54

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Solution

The fourth proportional to 25,439.69, 38,161.36 and 6,719.54 is: 10,079.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,439.69 : 38,161.36 = 6,719.54 : x
  2. Step 2: Convert to fraction form
    25,439.69/38,161.36 = 6,719.54/x
  3. Step 3: Cross multiply
    25,439.69x = 38,161.36 × 6,719.54
  4. Step 4: Simplify right side
    25,439.69x = 256,426,897.18
  5. Step 5: Solve for x
    x = 256,426,897.18/25,439.69
  6. Step 6: Final answer
    x = 10,079.79

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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.