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Finding the Fourth Proportional to 30,521.22, 45,781.83 and 8,334.10

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Solution

The fourth proportional to 30,521.22, 45,781.83 and 8,334.10 is: 12,501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.22 : 45,781.83 = 8,334.10 : x
  2. Step 2: Convert to fraction form
    30,521.22/45,781.83 = 8,334.10/x
  3. Step 3: Cross multiply
    30,521.22x = 45,781.83 × 8,334.10
  4. Step 4: Simplify right side
    30,521.22x = 381,550,349.40
  5. Step 5: Solve for x
    x = 381,550,349.40/30,521.22
  6. Step 6: Final answer
    x = 12,501.15

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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.