Home / 21,146.80-31,723.47-6,354.04

Finding the Fourth Proportional to 21,146.80, 31,723.47 and 6,354.04

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Solution

The fourth proportional to 21,146.80, 31,723.47 and 6,354.04 is: 9,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.80 : 31,723.47 = 6,354.04 : x
  2. Step 2: Convert to fraction form
    21,146.80/31,723.47 = 6,354.04/x
  3. Step 3: Cross multiply
    21,146.80x = 31,723.47 × 6,354.04
  4. Step 4: Simplify right side
    21,146.80x = 201,572,197.32
  5. Step 5: Solve for x
    x = 201,572,197.32/21,146.80
  6. Step 6: Final answer
    x = 9,532.04

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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.