Home / 30,200.43-45,249.48-18,489.18

Finding the Fourth Proportional to 30,200.43, 45,249.48 and 18,489.18

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Solution

The fourth proportional to 30,200.43, 45,249.48 and 18,489.18 is: 27,702.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,200.43 : 45,249.48 = 18,489.18 : x
  2. Step 2: Convert to fraction form
    30,200.43/45,249.48 = 18,489.18/x
  3. Step 3: Cross multiply
    30,200.43x = 45,249.48 × 18,489.18
  4. Step 4: Simplify right side
    30,200.43x = 836,625,780.63
  5. Step 5: Solve for x
    x = 836,625,780.63/30,200.43
  6. Step 6: Final answer
    x = 27,702.45

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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.