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Finding the Fourth Proportional to 30,068.97, 45,119.97 and 15,279.15

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Solution

The fourth proportional to 30,068.97, 45,119.97 and 15,279.15 is: 22,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.97 : 45,119.97 = 15,279.15 : x
  2. Step 2: Convert to fraction form
    30,068.97/45,119.97 = 15,279.15/x
  3. Step 3: Cross multiply
    30,068.97x = 45,119.97 × 15,279.15
  4. Step 4: Simplify right side
    30,068.97x = 689,394,789.63
  5. Step 5: Solve for x
    x = 689,394,789.63/30,068.97
  6. Step 6: Final answer
    x = 22,927.12

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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.