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Finding the Fourth Proportional to 43,339.86, 65,018.70 and 13,757.04

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Solution

The fourth proportional to 43,339.86, 65,018.70 and 13,757.04 is: 20,638.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,339.86 : 65,018.70 = 13,757.04 : x
  2. Step 2: Convert to fraction form
    43,339.86/65,018.70 = 13,757.04/x
  3. Step 3: Cross multiply
    43,339.86x = 65,018.70 × 13,757.04
  4. Step 4: Simplify right side
    43,339.86x = 894,464,856.65
  5. Step 5: Solve for x
    x = 894,464,856.65/43,339.86
  6. Step 6: Final answer
    x = 20,638.39

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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.