Home / 20,225.48-30,447.41-18,191.03

Finding the Fourth Proportional to 20,225.48, 30,447.41 and 18,191.03

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Solution

The fourth proportional to 20,225.48, 30,447.41 and 18,191.03 is: 27,384.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.48 : 30,447.41 = 18,191.03 : x
  2. Step 2: Convert to fraction form
    20,225.48/30,447.41 = 18,191.03/x
  3. Step 3: Cross multiply
    20,225.48x = 30,447.41 × 18,191.03
  4. Step 4: Simplify right side
    20,225.48x = 553,869,505.54
  5. Step 5: Solve for x
    x = 553,869,505.54/20,225.48
  6. Step 6: Final answer
    x = 27,384.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.