Home / 21,827.52-30,114.48-13,327.38

Finding the Fourth Proportional to 21,827.52, 30,114.48 and 13,327.38

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Solution

The fourth proportional to 21,827.52, 30,114.48 and 13,327.38 is: 18,387.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,827.52 : 30,114.48 = 13,327.38 : x
  2. Step 2: Convert to fraction form
    21,827.52/30,114.48 = 13,327.38/x
  3. Step 3: Cross multiply
    21,827.52x = 30,114.48 × 13,327.38
  4. Step 4: Simplify right side
    21,827.52x = 401,347,118.46
  5. Step 5: Solve for x
    x = 401,347,118.46/21,827.52
  6. Step 6: Final answer
    x = 18,387.21

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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.