Home / 43,442.16-65,162.10-13,861.80

Finding the Fourth Proportional to 43,442.16, 65,162.10 and 13,861.80

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Solution

The fourth proportional to 43,442.16, 65,162.10 and 13,861.80 is: 20,792.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,442.16 : 65,162.10 = 13,861.80 : x
  2. Step 2: Convert to fraction form
    43,442.16/65,162.10 = 13,861.80/x
  3. Step 3: Cross multiply
    43,442.16x = 65,162.10 × 13,861.80
  4. Step 4: Simplify right side
    43,442.16x = 903,263,997.78
  5. Step 5: Solve for x
    x = 903,263,997.78/43,442.16
  6. Step 6: Final answer
    x = 20,792.34

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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.