Home / 36,945.91-55,424.40-11,977.66

Finding the Fourth Proportional to 36,945.91, 55,424.40 and 11,977.66

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Solution

The fourth proportional to 36,945.91, 55,424.40 and 11,977.66 is: 17,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,945.91 : 55,424.40 = 11,977.66 : x
  2. Step 2: Convert to fraction form
    36,945.91/55,424.40 = 11,977.66/x
  3. Step 3: Cross multiply
    36,945.91x = 55,424.40 × 11,977.66
  4. Step 4: Simplify right side
    36,945.91x = 663,854,618.90
  5. Step 5: Solve for x
    x = 663,854,618.90/36,945.91
  6. Step 6: Final answer
    x = 17,968.28

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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.