Home / 13,823.06-20,734.79-3,434.81

Finding the Fourth Proportional to 13,823.06, 20,734.79 and 3,434.81

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Solution

The fourth proportional to 13,823.06, 20,734.79 and 3,434.81 is: 5,152.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.06 : 20,734.79 = 3,434.81 : x
  2. Step 2: Convert to fraction form
    13,823.06/20,734.79 = 3,434.81/x
  3. Step 3: Cross multiply
    13,823.06x = 20,734.79 × 3,434.81
  4. Step 4: Simplify right side
    13,823.06x = 71,219,943.19
  5. Step 5: Solve for x
    x = 71,219,943.19/13,823.06
  6. Step 6: Final answer
    x = 5,152.26

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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.