Home / 21,626.55-29,800.34-15,952.30

Finding the Fourth Proportional to 21,626.55, 29,800.34 and 15,952.30

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Solution

The fourth proportional to 21,626.55, 29,800.34 and 15,952.30 is: 21,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,626.55 : 29,800.34 = 15,952.30 : x
  2. Step 2: Convert to fraction form
    21,626.55/29,800.34 = 15,952.30/x
  3. Step 3: Cross multiply
    21,626.55x = 29,800.34 × 15,952.30
  4. Step 4: Simplify right side
    21,626.55x = 475,383,963.78
  5. Step 5: Solve for x
    x = 475,383,963.78/21,626.55
  6. Step 6: Final answer
    x = 21,981.50

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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.