Home / 21,080.04-31,620.03-6,299.31

Finding the Fourth Proportional to 21,080.04, 31,620.03 and 6,299.31

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Solution

The fourth proportional to 21,080.04, 31,620.03 and 6,299.31 is: 9,448.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080.04 : 31,620.03 = 6,299.31 : x
  2. Step 2: Convert to fraction form
    21,080.04/31,620.03 = 6,299.31/x
  3. Step 3: Cross multiply
    21,080.04x = 31,620.03 × 6,299.31
  4. Step 4: Simplify right side
    21,080.04x = 199,184,371.18
  5. Step 5: Solve for x
    x = 199,184,371.18/21,080.04
  6. Step 6: Final answer
    x = 9,448.96

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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.