Home / 21,193.68-29,242.44-13,237.86

Finding the Fourth Proportional to 21,193.68, 29,242.44 and 13,237.86

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Solution

The fourth proportional to 21,193.68, 29,242.44 and 13,237.86 is: 18,265.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.68 : 29,242.44 = 13,237.86 : x
  2. Step 2: Convert to fraction form
    21,193.68/29,242.44 = 13,237.86/x
  3. Step 3: Cross multiply
    21,193.68x = 29,242.44 × 13,237.86
  4. Step 4: Simplify right side
    21,193.68x = 387,107,326.78
  5. Step 5: Solve for x
    x = 387,107,326.78/21,193.68
  6. Step 6: Final answer
    x = 18,265.22

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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.