Home / 36,128.63-49,857.51-20,216.82

Finding the Fourth Proportional to 36,128.63, 49,857.51 and 20,216.82

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Solution

The fourth proportional to 36,128.63, 49,857.51 and 20,216.82 is: 27,899.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,128.63 : 49,857.51 = 20,216.82 : x
  2. Step 2: Convert to fraction form
    36,128.63/49,857.51 = 20,216.82/x
  3. Step 3: Cross multiply
    36,128.63x = 49,857.51 × 20,216.82
  4. Step 4: Simplify right side
    36,128.63x = 1,007,960,204.23
  5. Step 5: Solve for x
    x = 1,007,960,204.23/36,128.63
  6. Step 6: Final answer
    x = 27,899.21

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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.