Home / 20,804.40-31,211.10-6,012.08

Finding the Fourth Proportional to 20,804.40, 31,211.10 and 6,012.08

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Solution

The fourth proportional to 20,804.40, 31,211.10 and 6,012.08 is: 9,019.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.40 : 31,211.10 = 6,012.08 : x
  2. Step 2: Convert to fraction form
    20,804.40/31,211.10 = 6,012.08/x
  3. Step 3: Cross multiply
    20,804.40x = 31,211.10 × 6,012.08
  4. Step 4: Simplify right side
    20,804.40x = 187,643,630.09
  5. Step 5: Solve for x
    x = 187,643,630.09/20,804.40
  6. Step 6: Final answer
    x = 9,019.42

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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.