Home / 13,925.31-20,887.65-3,395.39

Finding the Fourth Proportional to 13,925.31, 20,887.65 and 3,395.39

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Solution

The fourth proportional to 13,925.31, 20,887.65 and 3,395.39 is: 5,093.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.31 : 20,887.65 = 3,395.39 : x
  2. Step 2: Convert to fraction form
    13,925.31/20,887.65 = 3,395.39/x
  3. Step 3: Cross multiply
    13,925.31x = 20,887.65 × 3,395.39
  4. Step 4: Simplify right side
    13,925.31x = 70,921,613.50
  5. Step 5: Solve for x
    x = 70,921,613.50/13,925.31
  6. Step 6: Final answer
    x = 5,093.00

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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.