Home / 43,420.92-65,129.34-18,109.98

Finding the Fourth Proportional to 43,420.92, 65,129.34 and 18,109.98

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Solution

The fourth proportional to 43,420.92, 65,129.34 and 18,109.98 is: 27,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,420.92 : 65,129.34 = 18,109.98 : x
  2. Step 2: Convert to fraction form
    43,420.92/65,129.34 = 18,109.98/x
  3. Step 3: Cross multiply
    43,420.92x = 65,129.34 × 18,109.98
  4. Step 4: Simplify right side
    43,420.92x = 1,179,491,044.81
  5. Step 5: Solve for x
    x = 1,179,491,044.81/43,420.92
  6. Step 6: Final answer
    x = 27,164.12

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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.