Home / 21,239.35-31,859.01-6,246.46

Finding the Fourth Proportional to 21,239.35, 31,859.01 and 6,246.46

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Solution

The fourth proportional to 21,239.35, 31,859.01 and 6,246.46 is: 9,369.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,239.35 : 31,859.01 = 6,246.46 : x
  2. Step 2: Convert to fraction form
    21,239.35/31,859.01 = 6,246.46/x
  3. Step 3: Cross multiply
    21,239.35x = 31,859.01 × 6,246.46
  4. Step 4: Simplify right side
    21,239.35x = 199,006,031.60
  5. Step 5: Solve for x
    x = 199,006,031.60/21,239.35
  6. Step 6: Final answer
    x = 9,369.69

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Double scale
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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.