Home / 13,885.88-20,829.14-4,025.40

Finding the Fourth Proportional to 13,885.88, 20,829.14 and 4,025.40

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Solution

The fourth proportional to 13,885.88, 20,829.14 and 4,025.40 is: 6,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.88 : 20,829.14 = 4,025.40 : x
  2. Step 2: Convert to fraction form
    13,885.88/20,829.14 = 4,025.40/x
  3. Step 3: Cross multiply
    13,885.88x = 20,829.14 × 4,025.40
  4. Step 4: Simplify right side
    13,885.88x = 83,845,620.16
  5. Step 5: Solve for x
    x = 83,845,620.16/13,885.88
  6. Step 6: Final answer
    x = 6,038.19

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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.