Home / 36,218.15-49,979.01-21,113.27

Finding the Fourth Proportional to 36,218.15, 49,979.01 and 21,113.27

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Solution

The fourth proportional to 36,218.15, 49,979.01 and 21,113.27 is: 29,135.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.15 : 49,979.01 = 21,113.27 : x
  2. Step 2: Convert to fraction form
    36,218.15/49,979.01 = 21,113.27/x
  3. Step 3: Cross multiply
    36,218.15x = 49,979.01 × 21,113.27
  4. Step 4: Simplify right side
    36,218.15x = 1,055,220,256.15
  5. Step 5: Solve for x
    x = 1,055,220,256.15/36,218.15
  6. Step 6: Final answer
    x = 29,135.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.