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Finding the Fourth Proportional to 25,418.88, 38,128.31 and 6,950.88

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Solution

The fourth proportional to 25,418.88, 38,128.31 and 6,950.88 is: 10,426.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.88 : 38,128.31 = 6,950.88 : x
  2. Step 2: Convert to fraction form
    25,418.88/38,128.31 = 6,950.88/x
  3. Step 3: Cross multiply
    25,418.88x = 38,128.31 × 6,950.88
  4. Step 4: Simplify right side
    25,418.88x = 265,025,307.41
  5. Step 5: Solve for x
    x = 265,025,307.41/25,418.88
  6. Step 6: Final answer
    x = 10,426.32

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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.