Home / 21,861.01-30,167.22-13,377.30

Finding the Fourth Proportional to 21,861.01, 30,167.22 and 13,377.30

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Solution

The fourth proportional to 21,861.01, 30,167.22 and 13,377.30 is: 18,460.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,861.01 : 30,167.22 = 13,377.30 : x
  2. Step 2: Convert to fraction form
    21,861.01/30,167.22 = 13,377.30/x
  3. Step 3: Cross multiply
    21,861.01x = 30,167.22 × 13,377.30
  4. Step 4: Simplify right side
    21,861.01x = 403,555,952.11
  5. Step 5: Solve for x
    x = 403,555,952.11/21,861.01
  6. Step 6: Final answer
    x = 18,460.08

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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.