Home / 43,189.53-64,756.56-18,222.75

Finding the Fourth Proportional to 43,189.53, 64,756.56 and 18,222.75

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Solution

The fourth proportional to 43,189.53, 64,756.56 and 18,222.75 is: 27,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,189.53 : 64,756.56 = 18,222.75 : x
  2. Step 2: Convert to fraction form
    43,189.53/64,756.56 = 18,222.75/x
  3. Step 3: Cross multiply
    43,189.53x = 64,756.56 × 18,222.75
  4. Step 4: Simplify right side
    43,189.53x = 1,180,042,603.74
  5. Step 5: Solve for x
    x = 1,180,042,603.74/43,189.53
  6. Step 6: Final answer
    x = 27,322.42

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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.