Home / 39,622.87-59,471.28-20,916.73

Finding the Fourth Proportional to 39,622.87, 59,471.28 and 20,916.73

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Solution

The fourth proportional to 39,622.87, 59,471.28 and 20,916.73 is: 31,394.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,622.87 : 59,471.28 = 20,916.73 : x
  2. Step 2: Convert to fraction form
    39,622.87/59,471.28 = 20,916.73/x
  3. Step 3: Cross multiply
    39,622.87x = 59,471.28 × 20,916.73
  4. Step 4: Simplify right side
    39,622.87x = 1,243,944,706.51
  5. Step 5: Solve for x
    x = 1,243,944,706.51/39,622.87
  6. Step 6: Final answer
    x = 31,394.61

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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.