Home / 36,919.31-55,379.75-13,228.40

Finding the Fourth Proportional to 36,919.31, 55,379.75 and 13,228.40

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Solution

The fourth proportional to 36,919.31, 55,379.75 and 13,228.40 is: 19,842.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,919.31 : 55,379.75 = 13,228.40 : x
  2. Step 2: Convert to fraction form
    36,919.31/55,379.75 = 13,228.40/x
  3. Step 3: Cross multiply
    36,919.31x = 55,379.75 × 13,228.40
  4. Step 4: Simplify right side
    36,919.31x = 732,585,484.90
  5. Step 5: Solve for x
    x = 732,585,484.90/36,919.31
  6. Step 6: Final answer
    x = 19,842.88

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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.