Home / 43,778.87-65,674.45-14,187.14

Finding the Fourth Proportional to 43,778.87, 65,674.45 and 14,187.14

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Solution

The fourth proportional to 43,778.87, 65,674.45 and 14,187.14 is: 21,282.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,778.87 : 65,674.45 = 14,187.14 : x
  2. Step 2: Convert to fraction form
    43,778.87/65,674.45 = 14,187.14/x
  3. Step 3: Cross multiply
    43,778.87x = 65,674.45 × 14,187.14
  4. Step 4: Simplify right side
    43,778.87x = 931,732,581.11
  5. Step 5: Solve for x
    x = 931,732,581.11/43,778.87
  6. Step 6: Final answer
    x = 21,282.70

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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.