Home / 43,475.13-65,105.78-21,216.74

Finding the Fourth Proportional to 43,475.13, 65,105.78 and 21,216.74

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Solution

The fourth proportional to 43,475.13, 65,105.78 and 21,216.74 is: 31,772.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,475.13 : 65,105.78 = 21,216.74 : x
  2. Step 2: Convert to fraction form
    43,475.13/65,105.78 = 21,216.74/x
  3. Step 3: Cross multiply
    43,475.13x = 65,105.78 × 21,216.74
  4. Step 4: Simplify right side
    43,475.13x = 1,381,331,975.14
  5. Step 5: Solve for x
    x = 1,381,331,975.14/43,475.13
  6. Step 6: Final answer
    x = 31,772.92

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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.