Home / 14,143.80-21,223.66-13,028.42

Finding the Fourth Proportional to 14,143.80, 21,223.66 and 13,028.42

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Solution

The fourth proportional to 14,143.80, 21,223.66 and 13,028.42 is: 19,549.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.80 : 21,223.66 = 13,028.42 : x
  2. Step 2: Convert to fraction form
    14,143.80/21,223.66 = 13,028.42/x
  3. Step 3: Cross multiply
    14,143.80x = 21,223.66 × 13,028.42
  4. Step 4: Simplify right side
    14,143.80x = 276,510,756.42
  5. Step 5: Solve for x
    x = 276,510,756.42/14,143.80
  6. Step 6: Final answer
    x = 19,549.96

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1.5x scale

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.