Home / 13,955.90-20,931.01-4,092.53

Finding the Fourth Proportional to 13,955.90, 20,931.01 and 4,092.53

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Solution

The fourth proportional to 13,955.90, 20,931.01 and 4,092.53 is: 6,137.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.90 : 20,931.01 = 4,092.53 : x
  2. Step 2: Convert to fraction form
    13,955.90/20,931.01 = 4,092.53/x
  3. Step 3: Cross multiply
    13,955.90x = 20,931.01 × 4,092.53
  4. Step 4: Simplify right side
    13,955.90x = 85,660,671.47
  5. Step 5: Solve for x
    x = 85,660,671.47/13,955.90
  6. Step 6: Final answer
    x = 6,137.96

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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.