Home / 30,020.22-45,011.61-11,299.50

Finding the Fourth Proportional to 30,020.22, 45,011.61 and 11,299.50

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Solution

The fourth proportional to 30,020.22, 45,011.61 and 11,299.50 is: 16,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.22 : 45,011.61 = 11,299.50 : x
  2. Step 2: Convert to fraction form
    30,020.22/45,011.61 = 11,299.50/x
  3. Step 3: Cross multiply
    30,020.22x = 45,011.61 × 11,299.50
  4. Step 4: Simplify right side
    30,020.22x = 508,608,687.20
  5. Step 5: Solve for x
    x = 508,608,687.20/30,020.22
  6. Step 6: Final answer
    x = 16,942.20

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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.