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Finding the Fourth Proportional to 30,010.72, 44,991.72 and 12,493.66

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Solution

The fourth proportional to 30,010.72, 44,991.72 and 12,493.66 is: 18,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,010.72 : 44,991.72 = 12,493.66 : x
  2. Step 2: Convert to fraction form
    30,010.72/44,991.72 = 12,493.66/x
  3. Step 3: Cross multiply
    30,010.72x = 44,991.72 × 12,493.66
  4. Step 4: Simplify right side
    30,010.72x = 562,111,252.50
  5. Step 5: Solve for x
    x = 562,111,252.50/30,010.72
  6. Step 6: Final answer
    x = 18,730.35

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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.