Home / 21,452.90-29,604.96-13,069.40

Finding the Fourth Proportional to 21,452.90, 29,604.96 and 13,069.40

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Solution

The fourth proportional to 21,452.90, 29,604.96 and 13,069.40 is: 18,035.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.90 : 29,604.96 = 13,069.40 : x
  2. Step 2: Convert to fraction form
    21,452.90/29,604.96 = 13,069.40/x
  3. Step 3: Cross multiply
    21,452.90x = 29,604.96 × 13,069.40
  4. Step 4: Simplify right side
    21,452.90x = 386,919,064.22
  5. Step 5: Solve for x
    x = 386,919,064.22/21,452.90
  6. Step 6: Final answer
    x = 18,035.75

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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.