Home / 15,938.60-23,879.10-13,634.60

Finding the Fourth Proportional to 15,938.60, 23,879.10 and 13,634.60

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Solution

The fourth proportional to 15,938.60, 23,879.10 and 13,634.60 is: 20,427.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.60 : 23,879.10 = 13,634.60 : x
  2. Step 2: Convert to fraction form
    15,938.60/23,879.10 = 13,634.60/x
  3. Step 3: Cross multiply
    15,938.60x = 23,879.10 × 13,634.60
  4. Step 4: Simplify right side
    15,938.60x = 325,581,976.86
  5. Step 5: Solve for x
    x = 325,581,976.86/15,938.60
  6. Step 6: Final answer
    x = 20,427.26

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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.