Home / 42,179.68-63,278.04-18,806.14

Finding the Fourth Proportional to 42,179.68, 63,278.04 and 18,806.14

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Solution

The fourth proportional to 42,179.68, 63,278.04 and 18,806.14 is: 28,213.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,179.68 : 63,278.04 = 18,806.14 : x
  2. Step 2: Convert to fraction form
    42,179.68/63,278.04 = 18,806.14/x
  3. Step 3: Cross multiply
    42,179.68x = 63,278.04 × 18,806.14
  4. Step 4: Simplify right side
    42,179.68x = 1,190,015,679.17
  5. Step 5: Solve for x
    x = 1,190,015,679.17/42,179.68
  6. Step 6: Final answer
    x = 28,213.01

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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.