Home / 36,318.48-50,116.93-20,405.32

Finding the Fourth Proportional to 36,318.48, 50,116.93 and 20,405.32

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Solution

The fourth proportional to 36,318.48, 50,116.93 and 20,405.32 is: 28,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,318.48 : 50,116.93 = 20,405.32 : x
  2. Step 2: Convert to fraction form
    36,318.48/50,116.93 = 20,405.32/x
  3. Step 3: Cross multiply
    36,318.48x = 50,116.93 × 20,405.32
  4. Step 4: Simplify right side
    36,318.48x = 1,022,651,817.76
  5. Step 5: Solve for x
    x = 1,022,651,817.76/36,318.48
  6. Step 6: Final answer
    x = 28,157.89

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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.