Home / 20,360.79-30,541.50-5,571.18

Finding the Fourth Proportional to 20,360.79, 30,541.50 and 5,571.18

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Solution

The fourth proportional to 20,360.79, 30,541.50 and 5,571.18 is: 8,356.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.79 : 30,541.50 = 5,571.18 : x
  2. Step 2: Convert to fraction form
    20,360.79/30,541.50 = 5,571.18/x
  3. Step 3: Cross multiply
    20,360.79x = 30,541.50 × 5,571.18
  4. Step 4: Simplify right side
    20,360.79x = 170,152,193.97
  5. Step 5: Solve for x
    x = 170,152,193.97/20,360.79
  6. Step 6: Final answer
    x = 8,356.86

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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.