Home / 43,160.56-64,740.72-11,995.76

Finding the Fourth Proportional to 43,160.56, 64,740.72 and 11,995.76

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Solution

The fourth proportional to 43,160.56, 64,740.72 and 11,995.76 is: 17,993.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,160.56 : 64,740.72 = 11,995.76 : x
  2. Step 2: Convert to fraction form
    43,160.56/64,740.72 = 11,995.76/x
  3. Step 3: Cross multiply
    43,160.56x = 64,740.72 × 11,995.76
  4. Step 4: Simplify right side
    43,160.56x = 776,614,139.35
  5. Step 5: Solve for x
    x = 776,614,139.35/43,160.56
  6. Step 6: Final answer
    x = 17,993.61

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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.