Home / 21,098.10-31,648.77-6,305.88

Finding the Fourth Proportional to 21,098.10, 31,648.77 and 6,305.88

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Solution

The fourth proportional to 21,098.10, 31,648.77 and 6,305.88 is: 9,459.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,098.10 : 31,648.77 = 6,305.88 : x
  2. Step 2: Convert to fraction form
    21,098.10/31,648.77 = 6,305.88/x
  3. Step 3: Cross multiply
    21,098.10x = 31,648.77 × 6,305.88
  4. Step 4: Simplify right side
    21,098.10x = 199,573,345.77
  5. Step 5: Solve for x
    x = 199,573,345.77/21,098.10
  6. Step 6: Final answer
    x = 9,459.30

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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.