Home / 30,592.20-45,772.36-18,118.92

Finding the Fourth Proportional to 30,592.20, 45,772.36 and 18,118.92

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Solution

The fourth proportional to 30,592.20, 45,772.36 and 18,118.92 is: 27,109.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,592.20 : 45,772.36 = 18,118.92 : x
  2. Step 2: Convert to fraction form
    30,592.20/45,772.36 = 18,118.92/x
  3. Step 3: Cross multiply
    30,592.20x = 45,772.36 × 18,118.92
  4. Step 4: Simplify right side
    30,592.20x = 829,345,729.05
  5. Step 5: Solve for x
    x = 829,345,729.05/30,592.20
  6. Step 6: Final answer
    x = 27,109.71

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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.