Home / 36,189.72-49,941.52-20,274.32

Finding the Fourth Proportional to 36,189.72, 49,941.52 and 20,274.32

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Solution

The fourth proportional to 36,189.72, 49,941.52 and 20,274.32 is: 27,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,189.72 : 49,941.52 = 20,274.32 : x
  2. Step 2: Convert to fraction form
    36,189.72/49,941.52 = 20,274.32/x
  3. Step 3: Cross multiply
    36,189.72x = 49,941.52 × 20,274.32
  4. Step 4: Simplify right side
    36,189.72x = 1,012,530,357.77
  5. Step 5: Solve for x
    x = 1,012,530,357.77/36,189.72
  6. Step 6: Final answer
    x = 27,978.40

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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.