Home / 30,380.28-45,580.68-19,144.08

Finding the Fourth Proportional to 30,380.28, 45,580.68 and 19,144.08

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Solution

The fourth proportional to 30,380.28, 45,580.68 and 19,144.08 is: 28,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,380.28 : 45,580.68 = 19,144.08 : x
  2. Step 2: Convert to fraction form
    30,380.28/45,580.68 = 19,144.08/x
  3. Step 3: Cross multiply
    30,380.28x = 45,580.68 × 19,144.08
  4. Step 4: Simplify right side
    30,380.28x = 872,600,184.37
  5. Step 5: Solve for x
    x = 872,600,184.37/30,380.28
  6. Step 6: Final answer
    x = 28,722.59

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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.