Home / 20,827.47-31,201.98-10,285.16

Finding the Fourth Proportional to 20,827.47, 31,201.98 and 10,285.16

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Solution

The fourth proportional to 20,827.47, 31,201.98 and 10,285.16 is: 15,408.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.47 : 31,201.98 = 10,285.16 : x
  2. Step 2: Convert to fraction form
    20,827.47/31,201.98 = 10,285.16/x
  3. Step 3: Cross multiply
    20,827.47x = 31,201.98 × 10,285.16
  4. Step 4: Simplify right side
    20,827.47x = 320,917,162.04
  5. Step 5: Solve for x
    x = 320,917,162.04/20,827.47
  6. Step 6: Final answer
    x = 15,408.36

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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.