Home / 30,232.20-45,330.30-18,553.80

Finding the Fourth Proportional to 30,232.20, 45,330.30 and 18,553.80

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Solution

The fourth proportional to 30,232.20, 45,330.30 and 18,553.80 is: 27,819.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,232.20 : 45,330.30 = 18,553.80 : x
  2. Step 2: Convert to fraction form
    30,232.20/45,330.30 = 18,553.80/x
  3. Step 3: Cross multiply
    30,232.20x = 45,330.30 × 18,553.80
  4. Step 4: Simplify right side
    30,232.20x = 841,049,320.14
  5. Step 5: Solve for x
    x = 841,049,320.14/30,232.20
  6. Step 6: Final answer
    x = 27,819.65

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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.