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Finding the Fourth Proportional to 30,005.90, 44,981.02 and 10,279.77

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Solution

The fourth proportional to 30,005.90, 44,981.02 and 10,279.77 is: 15,410.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.90 : 44,981.02 = 10,279.77 : x
  2. Step 2: Convert to fraction form
    30,005.90/44,981.02 = 10,279.77/x
  3. Step 3: Cross multiply
    30,005.90x = 44,981.02 × 10,279.77
  4. Step 4: Simplify right side
    30,005.90x = 462,394,539.97
  5. Step 5: Solve for x
    x = 462,394,539.97/30,005.90
  6. Step 6: Final answer
    x = 15,410.12

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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.