Home / 21,204.48-31,805.10-8,059.80

Finding the Fourth Proportional to 21,204.48, 31,805.10 and 8,059.80

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Solution

The fourth proportional to 21,204.48, 31,805.10 and 8,059.80 is: 12,089.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.48 : 31,805.10 = 8,059.80 : x
  2. Step 2: Convert to fraction form
    21,204.48/31,805.10 = 8,059.80/x
  3. Step 3: Cross multiply
    21,204.48x = 31,805.10 × 8,059.80
  4. Step 4: Simplify right side
    21,204.48x = 256,342,744.98
  5. Step 5: Solve for x
    x = 256,342,744.98/21,204.48
  6. Step 6: Final answer
    x = 12,089.08

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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.