Home / 21,861.83-32,790.92-13,090.34

Finding the Fourth Proportional to 21,861.83, 32,790.92 and 13,090.34

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Solution

The fourth proportional to 21,861.83, 32,790.92 and 13,090.34 is: 19,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,861.83 : 32,790.92 = 13,090.34 : x
  2. Step 2: Convert to fraction form
    21,861.83/32,790.92 = 13,090.34/x
  3. Step 3: Cross multiply
    21,861.83x = 32,790.92 × 13,090.34
  4. Step 4: Simplify right side
    21,861.83x = 429,244,062.31
  5. Step 5: Solve for x
    x = 429,244,062.31/21,861.83
  6. Step 6: Final answer
    x = 19,634.41

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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.