Home / 36,129.13-49,858.20-20,217.32

Finding the Fourth Proportional to 36,129.13, 49,858.20 and 20,217.32

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Solution

The fourth proportional to 36,129.13, 49,858.20 and 20,217.32 is: 27,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,129.13 : 49,858.20 = 20,217.32 : x
  2. Step 2: Convert to fraction form
    36,129.13/49,858.20 = 20,217.32/x
  3. Step 3: Cross multiply
    36,129.13x = 49,858.20 × 20,217.32
  4. Step 4: Simplify right side
    36,129.13x = 1,007,999,184.02
  5. Step 5: Solve for x
    x = 1,007,999,184.02/36,129.13
  6. Step 6: Final answer
    x = 27,899.90

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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.