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Finding the Fourth Proportional to 29,809.98, 44,735.45 and 12,279.78

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Solution

The fourth proportional to 29,809.98, 44,735.45 and 12,279.78 is: 18,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,809.98 : 44,735.45 = 12,279.78 : x
  2. Step 2: Convert to fraction form
    29,809.98/44,735.45 = 12,279.78/x
  3. Step 3: Cross multiply
    29,809.98x = 44,735.45 × 12,279.78
  4. Step 4: Simplify right side
    29,809.98x = 549,341,422.80
  5. Step 5: Solve for x
    x = 549,341,422.80/29,809.98
  6. Step 6: Final answer
    x = 18,428.10

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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.