Home / 43,309.56-64,966.26-12,144.12

Finding the Fourth Proportional to 43,309.56, 64,966.26 and 12,144.12

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Solution

The fourth proportional to 43,309.56, 64,966.26 and 12,144.12 is: 18,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,309.56 : 64,966.26 = 12,144.12 : x
  2. Step 2: Convert to fraction form
    43,309.56/64,966.26 = 12,144.12/x
  3. Step 3: Cross multiply
    43,309.56x = 64,966.26 × 12,144.12
  4. Step 4: Simplify right side
    43,309.56x = 788,958,057.39
  5. Step 5: Solve for x
    x = 788,958,057.39/43,309.56
  6. Step 6: Final answer
    x = 18,216.72

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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.