Home / 21,051.09-31,574.21-5,469.93

Finding the Fourth Proportional to 21,051.09, 31,574.21 and 5,469.93

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Solution

The fourth proportional to 21,051.09, 31,574.21 and 5,469.93 is: 8,204.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.09 : 31,574.21 = 5,469.93 : x
  2. Step 2: Convert to fraction form
    21,051.09/31,574.21 = 5,469.93/x
  3. Step 3: Cross multiply
    21,051.09x = 31,574.21 × 5,469.93
  4. Step 4: Simplify right side
    21,051.09x = 172,708,691.16
  5. Step 5: Solve for x
    x = 172,708,691.16/21,051.09
  6. Step 6: Final answer
    x = 8,204.26

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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.