Home / 30,214.23-45,314.49-11,487.61

Finding the Fourth Proportional to 30,214.23, 45,314.49 and 11,487.61

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Solution

The fourth proportional to 30,214.23, 45,314.49 and 11,487.61 is: 17,228.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,214.23 : 45,314.49 = 11,487.61 : x
  2. Step 2: Convert to fraction form
    30,214.23/45,314.49 = 11,487.61/x
  3. Step 3: Cross multiply
    30,214.23x = 45,314.49 × 11,487.61
  4. Step 4: Simplify right side
    30,214.23x = 520,555,188.47
  5. Step 5: Solve for x
    x = 520,555,188.47/30,214.23
  6. Step 6: Final answer
    x = 17,228.81

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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.