Home / 28,362.27-42,450.66-20,863.83

Finding the Fourth Proportional to 28,362.27, 42,450.66 and 20,863.83

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Solution

The fourth proportional to 28,362.27, 42,450.66 and 20,863.83 is: 31,227.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.27 : 42,450.66 = 20,863.83 : x
  2. Step 2: Convert to fraction form
    28,362.27/42,450.66 = 20,863.83/x
  3. Step 3: Cross multiply
    28,362.27x = 42,450.66 × 20,863.83
  4. Step 4: Simplify right side
    28,362.27x = 885,683,353.63
  5. Step 5: Solve for x
    x = 885,683,353.63/28,362.27
  6. Step 6: Final answer
    x = 31,227.52

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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.