Home / 20,745.02-31,088.36-9,033.68

Finding the Fourth Proportional to 20,745.02, 31,088.36 and 9,033.68

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Solution

The fourth proportional to 20,745.02, 31,088.36 and 9,033.68 is: 13,537.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745.02 : 31,088.36 = 9,033.68 : x
  2. Step 2: Convert to fraction form
    20,745.02/31,088.36 = 9,033.68/x
  3. Step 3: Cross multiply
    20,745.02x = 31,088.36 × 9,033.68
  4. Step 4: Simplify right side
    20,745.02x = 280,842,295.96
  5. Step 5: Solve for x
    x = 280,842,295.96/20,745.02
  6. Step 6: Final answer
    x = 13,537.82

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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.