Home / 36,215.28-49,977.18-21,106.80

Finding the Fourth Proportional to 36,215.28, 49,977.18 and 21,106.80

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Solution

The fourth proportional to 36,215.28, 49,977.18 and 21,106.80 is: 29,127.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,215.28 : 49,977.18 = 21,106.80 : x
  2. Step 2: Convert to fraction form
    36,215.28/49,977.18 = 21,106.80/x
  3. Step 3: Cross multiply
    36,215.28x = 49,977.18 × 21,106.80
  4. Step 4: Simplify right side
    36,215.28x = 1,054,858,342.82
  5. Step 5: Solve for x
    x = 1,054,858,342.82/36,215.28
  6. Step 6: Final answer
    x = 29,127.44

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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.