Home / 21,006.88-31,507.48-6,217.36

Finding the Fourth Proportional to 21,006.88, 31,507.48 and 6,217.36

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Solution

The fourth proportional to 21,006.88, 31,507.48 and 6,217.36 is: 9,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,006.88 : 31,507.48 = 6,217.36 : x
  2. Step 2: Convert to fraction form
    21,006.88/31,507.48 = 6,217.36/x
  3. Step 3: Cross multiply
    21,006.88x = 31,507.48 × 6,217.36
  4. Step 4: Simplify right side
    21,006.88x = 195,893,345.85
  5. Step 5: Solve for x
    x = 195,893,345.85/21,006.88
  6. Step 6: Final answer
    x = 9,325.20

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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.