Home / 25,419.81-38,129.72-6,951.81

Finding the Fourth Proportional to 25,419.81, 38,129.72 and 6,951.81

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Solution

The fourth proportional to 25,419.81, 38,129.72 and 6,951.81 is: 10,427.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,419.81 : 38,129.72 = 6,951.81 : x
  2. Step 2: Convert to fraction form
    25,419.81/38,129.72 = 6,951.81/x
  3. Step 3: Cross multiply
    25,419.81x = 38,129.72 × 6,951.81
  4. Step 4: Simplify right side
    25,419.81x = 265,070,568.79
  5. Step 5: Solve for x
    x = 265,070,568.79/25,419.81
  6. Step 6: Final answer
    x = 10,427.72

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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.