Home / 21,186.24-31,779.57-6,395.24

Finding the Fourth Proportional to 21,186.24, 31,779.57 and 6,395.24

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Solution

The fourth proportional to 21,186.24, 31,779.57 and 6,395.24 is: 9,592.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.24 : 31,779.57 = 6,395.24 : x
  2. Step 2: Convert to fraction form
    21,186.24/31,779.57 = 6,395.24/x
  3. Step 3: Cross multiply
    21,186.24x = 31,779.57 × 6,395.24
  4. Step 4: Simplify right side
    21,186.24x = 203,237,818.35
  5. Step 5: Solve for x
    x = 203,237,818.35/21,186.24
  6. Step 6: Final answer
    x = 9,592.92

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Similar ratio
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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.