Home / 30,074.20-45,064.50-11,343.98

Finding the Fourth Proportional to 30,074.20, 45,064.50 and 11,343.98

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Solution

The fourth proportional to 30,074.20, 45,064.50 and 11,343.98 is: 16,998.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,074.20 : 45,064.50 = 11,343.98 : x
  2. Step 2: Convert to fraction form
    30,074.20/45,064.50 = 11,343.98/x
  3. Step 3: Cross multiply
    30,074.20x = 45,064.50 × 11,343.98
  4. Step 4: Simplify right side
    30,074.20x = 511,210,856.83
  5. Step 5: Solve for x
    x = 511,210,856.83/30,074.20
  6. Step 6: Final answer
    x = 16,998.32

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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.