Home / 21,613.57-32,357.30-13,268.30

Finding the Fourth Proportional to 21,613.57, 32,357.30 and 13,268.30

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Solution

The fourth proportional to 21,613.57, 32,357.30 and 13,268.30 is: 19,863.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,613.57 : 32,357.30 = 13,268.30 : x
  2. Step 2: Convert to fraction form
    21,613.57/32,357.30 = 13,268.30/x
  3. Step 3: Cross multiply
    21,613.57x = 32,357.30 × 13,268.30
  4. Step 4: Simplify right side
    21,613.57x = 429,326,135.46
  5. Step 5: Solve for x
    x = 429,326,135.46/21,613.57
  6. Step 6: Final answer
    x = 19,863.73

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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.