Home / 21,304.08-29,401.98-12,351.48

Finding the Fourth Proportional to 21,304.08, 29,401.98 and 12,351.48

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Solution

The fourth proportional to 21,304.08, 29,401.98 and 12,351.48 is: 17,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.08 : 29,401.98 = 12,351.48 : x
  2. Step 2: Convert to fraction form
    21,304.08/29,401.98 = 12,351.48/x
  3. Step 3: Cross multiply
    21,304.08x = 29,401.98 × 12,351.48
  4. Step 4: Simplify right side
    21,304.08x = 363,157,967.93
  5. Step 5: Solve for x
    x = 363,157,967.93/21,304.08
  6. Step 6: Final answer
    x = 17,046.40

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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.