Home / 21,008.94-31,508.91-6,217.98

Finding the Fourth Proportional to 21,008.94, 31,508.91 and 6,217.98

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Solution

The fourth proportional to 21,008.94, 31,508.91 and 6,217.98 is: 9,325.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008.94 : 31,508.91 = 6,217.98 : x
  2. Step 2: Convert to fraction form
    21,008.94/31,508.91 = 6,217.98/x
  3. Step 3: Cross multiply
    21,008.94x = 31,508.91 × 6,217.98
  4. Step 4: Simplify right side
    21,008.94x = 195,921,772.20
  5. Step 5: Solve for x
    x = 195,921,772.20/21,008.94
  6. Step 6: Final answer
    x = 9,325.64

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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.