Home / 25,530.88-38,296.30-7,761.68

Finding the Fourth Proportional to 25,530.88, 38,296.30 and 7,761.68

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Solution

The fourth proportional to 25,530.88, 38,296.30 and 7,761.68 is: 11,642.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,530.88 : 38,296.30 = 7,761.68 : x
  2. Step 2: Convert to fraction form
    25,530.88/38,296.30 = 7,761.68/x
  3. Step 3: Cross multiply
    25,530.88x = 38,296.30 × 7,761.68
  4. Step 4: Simplify right side
    25,530.88x = 297,243,702.60
  5. Step 5: Solve for x
    x = 297,243,702.60/25,530.88
  6. Step 6: Final answer
    x = 11,642.52

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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.