Home / 36,209.18-49,965.91-20,290.55

Finding the Fourth Proportional to 36,209.18, 49,965.91 and 20,290.55

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Solution

The fourth proportional to 36,209.18, 49,965.91 and 20,290.55 is: 27,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,209.18 : 49,965.91 = 20,290.55 : x
  2. Step 2: Convert to fraction form
    36,209.18/49,965.91 = 20,290.55/x
  3. Step 3: Cross multiply
    36,209.18x = 49,965.91 × 20,290.55
  4. Step 4: Simplify right side
    36,209.18x = 1,013,835,494.59
  5. Step 5: Solve for x
    x = 1,013,835,494.59/36,209.18
  6. Step 6: Final answer
    x = 27,999.40

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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.