Home / 21,308.25-31,962.37-5,725.88

Finding the Fourth Proportional to 21,308.25, 31,962.37 and 5,725.88

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Solution

The fourth proportional to 21,308.25, 31,962.37 and 5,725.88 is: 8,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308.25 : 31,962.37 = 5,725.88 : x
  2. Step 2: Convert to fraction form
    21,308.25/31,962.37 = 5,725.88/x
  3. Step 3: Cross multiply
    21,308.25x = 31,962.37 × 5,725.88
  4. Step 4: Simplify right side
    21,308.25x = 183,012,695.14
  5. Step 5: Solve for x
    x = 183,012,695.14/21,308.25
  6. Step 6: Final answer
    x = 8,588.82

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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.