Home / 21,402.83-29,474.66-15,425.03

Finding the Fourth Proportional to 21,402.83, 29,474.66 and 15,425.03

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Solution

The fourth proportional to 21,402.83, 29,474.66 and 15,425.03 is: 21,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,402.83 : 29,474.66 = 15,425.03 : x
  2. Step 2: Convert to fraction form
    21,402.83/29,474.66 = 15,425.03/x
  3. Step 3: Cross multiply
    21,402.83x = 29,474.66 × 15,425.03
  4. Step 4: Simplify right side
    21,402.83x = 454,647,290.24
  5. Step 5: Solve for x
    x = 454,647,290.24/21,402.83
  6. Step 6: Final answer
    x = 21,242.40

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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.