Home / 43,138.44-64,707.66-11,973.69

Finding the Fourth Proportional to 43,138.44, 64,707.66 and 11,973.69

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Solution

The fourth proportional to 43,138.44, 64,707.66 and 11,973.69 is: 17,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138.44 : 64,707.66 = 11,973.69 : x
  2. Step 2: Convert to fraction form
    43,138.44/64,707.66 = 11,973.69/x
  3. Step 3: Cross multiply
    43,138.44x = 64,707.66 × 11,973.69
  4. Step 4: Simplify right side
    43,138.44x = 774,789,461.47
  5. Step 5: Solve for x
    x = 774,789,461.47/43,138.44
  6. Step 6: Final answer
    x = 17,960.54

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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.