Home / 21,227.08-31,841.52-6,435.58

Finding the Fourth Proportional to 21,227.08, 31,841.52 and 6,435.58

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Solution

The fourth proportional to 21,227.08, 31,841.52 and 6,435.58 is: 9,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.08 : 31,841.52 = 6,435.58 : x
  2. Step 2: Convert to fraction form
    21,227.08/31,841.52 = 6,435.58/x
  3. Step 3: Cross multiply
    21,227.08x = 31,841.52 × 6,435.58
  4. Step 4: Simplify right side
    21,227.08x = 204,918,649.28
  5. Step 5: Solve for x
    x = 204,918,649.28/21,227.08
  6. Step 6: Final answer
    x = 9,653.64

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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.