Home / 21,622.29-29,836.53-15,960.03

Finding the Fourth Proportional to 21,622.29, 29,836.53 and 15,960.03

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Solution

The fourth proportional to 21,622.29, 29,836.53 and 15,960.03 is: 22,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.29 : 29,836.53 = 15,960.03 : x
  2. Step 2: Convert to fraction form
    21,622.29/29,836.53 = 15,960.03/x
  3. Step 3: Cross multiply
    21,622.29x = 29,836.53 × 15,960.03
  4. Step 4: Simplify right side
    21,622.29x = 476,191,913.90
  5. Step 5: Solve for x
    x = 476,191,913.90/21,622.29
  6. Step 6: Final answer
    x = 22,023.20

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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.