Home / 20,623.28-30,913.24-13,132.59

Finding the Fourth Proportional to 20,623.28, 30,913.24 and 13,132.59

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Solution

The fourth proportional to 20,623.28, 30,913.24 and 13,132.59 is: 19,685.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.28 : 30,913.24 = 13,132.59 : x
  2. Step 2: Convert to fraction form
    20,623.28/30,913.24 = 13,132.59/x
  3. Step 3: Cross multiply
    20,623.28x = 30,913.24 × 13,132.59
  4. Step 4: Simplify right side
    20,623.28x = 405,970,906.49
  5. Step 5: Solve for x
    x = 405,970,906.49/20,623.28
  6. Step 6: Final answer
    x = 19,685.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.