Home / 21,884.72-30,200.51-13,386.22

Finding the Fourth Proportional to 21,884.72, 30,200.51 and 13,386.22

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Solution

The fourth proportional to 21,884.72, 30,200.51 and 13,386.22 is: 18,472.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,884.72 : 30,200.51 = 13,386.22 : x
  2. Step 2: Convert to fraction form
    21,884.72/30,200.51 = 13,386.22/x
  3. Step 3: Cross multiply
    21,884.72x = 30,200.51 × 13,386.22
  4. Step 4: Simplify right side
    21,884.72x = 404,270,593.53
  5. Step 5: Solve for x
    x = 404,270,593.53/21,884.72
  6. Step 6: Final answer
    x = 18,472.73

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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.