Home / 30,217.53-45,314.64-11,487.72

Finding the Fourth Proportional to 30,217.53, 45,314.64 and 11,487.72

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Solution

The fourth proportional to 30,217.53, 45,314.64 and 11,487.72 is: 17,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,217.53 : 45,314.64 = 11,487.72 : x
  2. Step 2: Convert to fraction form
    30,217.53/45,314.64 = 11,487.72/x
  3. Step 3: Cross multiply
    30,217.53x = 45,314.64 × 11,487.72
  4. Step 4: Simplify right side
    30,217.53x = 520,561,896.22
  5. Step 5: Solve for x
    x = 520,561,896.22/30,217.53
  6. Step 6: Final answer
    x = 17,227.15

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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.