Home / 21,452.89-29,604.95-13,069.39

Finding the Fourth Proportional to 21,452.89, 29,604.95 and 13,069.39

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Solution

The fourth proportional to 21,452.89, 29,604.95 and 13,069.39 is: 18,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,452.89 : 29,604.95 = 13,069.39 : x
  2. Step 2: Convert to fraction form
    21,452.89/29,604.95 = 13,069.39/x
  3. Step 3: Cross multiply
    21,452.89x = 29,604.95 × 13,069.39
  4. Step 4: Simplify right side
    21,452.89x = 386,918,637.48
  5. Step 5: Solve for x
    x = 386,918,637.48/21,452.89
  6. Step 6: Final answer
    x = 18,035.73

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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.