Home / 21,103.87-31,598.35-14,854.51

Finding the Fourth Proportional to 21,103.87, 31,598.35 and 14,854.51

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Solution

The fourth proportional to 21,103.87, 31,598.35 and 14,854.51 is: 22,241.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103.87 : 31,598.35 = 14,854.51 : x
  2. Step 2: Convert to fraction form
    21,103.87/31,598.35 = 14,854.51/x
  3. Step 3: Cross multiply
    21,103.87x = 31,598.35 × 14,854.51
  4. Step 4: Simplify right side
    21,103.87x = 469,378,180.85
  5. Step 5: Solve for x
    x = 469,378,180.85/21,103.87
  6. Step 6: Final answer
    x = 22,241.34

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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.