Home / 21,224.50-31,612.55-20,114.26

Finding the Fourth Proportional to 21,224.50, 31,612.55 and 20,114.26

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Solution

The fourth proportional to 21,224.50, 31,612.55 and 20,114.26 is: 29,958.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,224.50 : 31,612.55 = 20,114.26 : x
  2. Step 2: Convert to fraction form
    21,224.50/31,612.55 = 20,114.26/x
  3. Step 3: Cross multiply
    21,224.50x = 31,612.55 × 20,114.26
  4. Step 4: Simplify right side
    21,224.50x = 635,862,949.39
  5. Step 5: Solve for x
    x = 635,862,949.39/21,224.50
  6. Step 6: Final answer
    x = 29,958.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.