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Finding the Fourth Proportional to 30,346.70, 45,522.77 and 8,159.59

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Solution

The fourth proportional to 30,346.70, 45,522.77 and 8,159.59 is: 12,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,346.70 : 45,522.77 = 8,159.59 : x
  2. Step 2: Convert to fraction form
    30,346.70/45,522.77 = 8,159.59/x
  3. Step 3: Cross multiply
    30,346.70x = 45,522.77 × 8,159.59
  4. Step 4: Simplify right side
    30,346.70x = 371,446,984.26
  5. Step 5: Solve for x
    x = 371,446,984.26/30,346.70
  6. Step 6: Final answer
    x = 12,240.11

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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.