Home / 28,139.10-38,835.64-16,202.94

Finding the Fourth Proportional to 28,139.10, 38,835.64 and 16,202.94

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Solution

The fourth proportional to 28,139.10, 38,835.64 and 16,202.94 is: 22,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139.10 : 38,835.64 = 16,202.94 : x
  2. Step 2: Convert to fraction form
    28,139.10/38,835.64 = 16,202.94/x
  3. Step 3: Cross multiply
    28,139.10x = 38,835.64 × 16,202.94
  4. Step 4: Simplify right side
    28,139.10x = 629,251,544.78
  5. Step 5: Solve for x
    x = 629,251,544.78/28,139.10
  6. Step 6: Final answer
    x = 22,362.18

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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.