Home / 13,925.15-20,887.47-3,395.25

Finding the Fourth Proportional to 13,925.15, 20,887.47 and 3,395.25

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Solution

The fourth proportional to 13,925.15, 20,887.47 and 3,395.25 is: 5,092.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.15 : 20,887.47 = 3,395.25 : x
  2. Step 2: Convert to fraction form
    13,925.15/20,887.47 = 3,395.25/x
  3. Step 3: Cross multiply
    13,925.15x = 20,887.47 × 3,395.25
  4. Step 4: Simplify right side
    13,925.15x = 70,918,182.52
  5. Step 5: Solve for x
    x = 70,918,182.52/13,925.15
  6. Step 6: Final answer
    x = 5,092.81

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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.