Home / 20,371.50-28,134.95-14,015.03

Finding the Fourth Proportional to 20,371.50, 28,134.95 and 14,015.03

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Solution

The fourth proportional to 20,371.50, 28,134.95 and 14,015.03 is: 19,356.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.50 : 28,134.95 = 14,015.03 : x
  2. Step 2: Convert to fraction form
    20,371.50/28,134.95 = 14,015.03/x
  3. Step 3: Cross multiply
    20,371.50x = 28,134.95 × 14,015.03
  4. Step 4: Simplify right side
    20,371.50x = 394,311,957.55
  5. Step 5: Solve for x
    x = 394,311,957.55/20,371.50
  6. Step 6: Final answer
    x = 19,356.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.