Home / 21,323.26-29,465.20-20,299.02

Finding the Fourth Proportional to 21,323.26, 29,465.20 and 20,299.02

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Solution

The fourth proportional to 21,323.26, 29,465.20 and 20,299.02 is: 28,049.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.26 : 29,465.20 = 20,299.02 : x
  2. Step 2: Convert to fraction form
    21,323.26/29,465.20 = 20,299.02/x
  3. Step 3: Cross multiply
    21,323.26x = 29,465.20 × 20,299.02
  4. Step 4: Simplify right side
    21,323.26x = 598,114,684.10
  5. Step 5: Solve for x
    x = 598,114,684.10/21,323.26
  6. Step 6: Final answer
    x = 28,049.87

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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.