Home / 13,823.02-20,734.80-3,434.50

Finding the Fourth Proportional to 13,823.02, 20,734.80 and 3,434.50

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Solution

The fourth proportional to 13,823.02, 20,734.80 and 3,434.50 is: 5,151.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.02 : 20,734.80 = 3,434.50 : x
  2. Step 2: Convert to fraction form
    13,823.02/20,734.80 = 3,434.50/x
  3. Step 3: Cross multiply
    13,823.02x = 20,734.80 × 3,434.50
  4. Step 4: Simplify right side
    13,823.02x = 71,213,670.60
  5. Step 5: Solve for x
    x = 71,213,670.60/13,823.02
  6. Step 6: Final answer
    x = 5,151.82

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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.