Home / 25,429.20-38,139.72-6,956.88

Finding the Fourth Proportional to 25,429.20, 38,139.72 and 6,956.88

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Solution

The fourth proportional to 25,429.20, 38,139.72 and 6,956.88 is: 10,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,429.20 : 38,139.72 = 6,956.88 : x
  2. Step 2: Convert to fraction form
    25,429.20/38,139.72 = 6,956.88/x
  3. Step 3: Cross multiply
    25,429.20x = 38,139.72 × 6,956.88
  4. Step 4: Simplify right side
    25,429.20x = 265,333,455.27
  5. Step 5: Solve for x
    x = 265,333,455.27/25,429.20
  6. Step 6: Final answer
    x = 10,434.20

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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.