Home / 36,405.64-50,239.67-20,490.08

Finding the Fourth Proportional to 36,405.64, 50,239.67 and 20,490.08

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Solution

The fourth proportional to 36,405.64, 50,239.67 and 20,490.08 is: 28,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,405.64 : 50,239.67 = 20,490.08 : x
  2. Step 2: Convert to fraction form
    36,405.64/50,239.67 = 20,490.08/x
  3. Step 3: Cross multiply
    36,405.64x = 50,239.67 × 20,490.08
  4. Step 4: Simplify right side
    36,405.64x = 1,029,414,755.02
  5. Step 5: Solve for x
    x = 1,029,414,755.02/36,405.64
  6. Step 6: Final answer
    x = 28,276.25

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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.