Home / 43,415.68-65,118.24-18,465.76

Finding the Fourth Proportional to 43,415.68, 65,118.24 and 18,465.76

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Solution

The fourth proportional to 43,415.68, 65,118.24 and 18,465.76 is: 27,696.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,415.68 : 65,118.24 = 18,465.76 : x
  2. Step 2: Convert to fraction form
    43,415.68/65,118.24 = 18,465.76/x
  3. Step 3: Cross multiply
    43,415.68x = 65,118.24 × 18,465.76
  4. Step 4: Simplify right side
    43,415.68x = 1,202,457,791.46
  5. Step 5: Solve for x
    x = 1,202,457,791.46/43,415.68
  6. Step 6: Final answer
    x = 27,696.39

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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.