Home / 21,302.23-31,953.42-6,511.09

Finding the Fourth Proportional to 21,302.23, 31,953.42 and 6,511.09

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Solution

The fourth proportional to 21,302.23, 31,953.42 and 6,511.09 is: 9,766.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.23 : 31,953.42 = 6,511.09 : x
  2. Step 2: Convert to fraction form
    21,302.23/31,953.42 = 6,511.09/x
  3. Step 3: Cross multiply
    21,302.23x = 31,953.42 × 6,511.09
  4. Step 4: Simplify right side
    21,302.23x = 208,051,593.43
  5. Step 5: Solve for x
    x = 208,051,593.43/21,302.23
  6. Step 6: Final answer
    x = 9,766.66

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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.