Home / 21,197.68-29,266.24-13,646.80

Finding the Fourth Proportional to 21,197.68, 29,266.24 and 13,646.80

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Solution

The fourth proportional to 21,197.68, 29,266.24 and 13,646.80 is: 18,841.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.68 : 29,266.24 = 13,646.80 : x
  2. Step 2: Convert to fraction form
    21,197.68/29,266.24 = 13,646.80/x
  3. Step 3: Cross multiply
    21,197.68x = 29,266.24 × 13,646.80
  4. Step 4: Simplify right side
    21,197.68x = 399,390,524.03
  5. Step 5: Solve for x
    x = 399,390,524.03/21,197.68
  6. Step 6: Final answer
    x = 18,841.24

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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.