Home / 21,778.04-30,053.33-12,218.29

Finding the Fourth Proportional to 21,778.04, 30,053.33 and 12,218.29

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Solution

The fourth proportional to 21,778.04, 30,053.33 and 12,218.29 is: 16,861.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.04 : 30,053.33 = 12,218.29 : x
  2. Step 2: Convert to fraction form
    21,778.04/30,053.33 = 12,218.29/x
  3. Step 3: Cross multiply
    21,778.04x = 30,053.33 × 12,218.29
  4. Step 4: Simplify right side
    21,778.04x = 367,200,301.41
  5. Step 5: Solve for x
    x = 367,200,301.41/21,778.04
  6. Step 6: Final answer
    x = 16,861.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.