Home / 20,641.16-30,961.56-5,058.80

Finding the Fourth Proportional to 20,641.16, 30,961.56 and 5,058.80

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Solution

The fourth proportional to 20,641.16, 30,961.56 and 5,058.80 is: 7,588.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641.16 : 30,961.56 = 5,058.80 : x
  2. Step 2: Convert to fraction form
    20,641.16/30,961.56 = 5,058.80/x
  3. Step 3: Cross multiply
    20,641.16x = 30,961.56 × 5,058.80
  4. Step 4: Simplify right side
    20,641.16x = 156,628,339.73
  5. Step 5: Solve for x
    x = 156,628,339.73/20,641.16
  6. Step 6: Final answer
    x = 7,588.16

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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.