Home / 20,227.74-30,191.82-18,981.15

Finding the Fourth Proportional to 20,227.74, 30,191.82 and 18,981.15

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Solution

The fourth proportional to 20,227.74, 30,191.82 and 18,981.15 is: 28,331.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.74 : 30,191.82 = 18,981.15 : x
  2. Step 2: Convert to fraction form
    20,227.74/30,191.82 = 18,981.15/x
  3. Step 3: Cross multiply
    20,227.74x = 30,191.82 × 18,981.15
  4. Step 4: Simplify right side
    20,227.74x = 573,075,464.19
  5. Step 5: Solve for x
    x = 573,075,464.19/20,227.74
  6. Step 6: Final answer
    x = 28,331.17

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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.