Home / 36,138.63-49,871.91-19,785.57

Finding the Fourth Proportional to 36,138.63, 49,871.91 and 19,785.57

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Solution

The fourth proportional to 36,138.63, 49,871.91 and 19,785.57 is: 27,304.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,138.63 : 49,871.91 = 19,785.57 : x
  2. Step 2: Convert to fraction form
    36,138.63/49,871.91 = 19,785.57/x
  3. Step 3: Cross multiply
    36,138.63x = 49,871.91 × 19,785.57
  4. Step 4: Simplify right side
    36,138.63x = 986,744,066.90
  5. Step 5: Solve for x
    x = 986,744,066.90/36,138.63
  6. Step 6: Final answer
    x = 27,304.41

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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.