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Finding the Fourth Proportional to 30,088.59, 45,100.88 and 11,360.66

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Solution

The fourth proportional to 30,088.59, 45,100.88 and 11,360.66 is: 17,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,088.59 : 45,100.88 = 11,360.66 : x
  2. Step 2: Convert to fraction form
    30,088.59/45,100.88 = 11,360.66/x
  3. Step 3: Cross multiply
    30,088.59x = 45,100.88 × 11,360.66
  4. Step 4: Simplify right side
    30,088.59x = 512,375,491.72
  5. Step 5: Solve for x
    x = 512,375,491.72/30,088.59
  6. Step 6: Final answer
    x = 17,028.90

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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.