Home / 20,690.06-31,039.95-5,899.19

Finding the Fourth Proportional to 20,690.06, 31,039.95 and 5,899.19

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Solution

The fourth proportional to 20,690.06, 31,039.95 and 5,899.19 is: 8,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690.06 : 31,039.95 = 5,899.19 : x
  2. Step 2: Convert to fraction form
    20,690.06/31,039.95 = 5,899.19/x
  3. Step 3: Cross multiply
    20,690.06x = 31,039.95 × 5,899.19
  4. Step 4: Simplify right side
    20,690.06x = 183,110,407.44
  5. Step 5: Solve for x
    x = 183,110,407.44/20,690.06
  6. Step 6: Final answer
    x = 8,850.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.