Home / 20,463.10-30,711.39-10,605.34

Finding the Fourth Proportional to 20,463.10, 30,711.39 and 10,605.34

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Solution

The fourth proportional to 20,463.10, 30,711.39 and 10,605.34 is: 15,916.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463.10 : 30,711.39 = 10,605.34 : x
  2. Step 2: Convert to fraction form
    20,463.10/30,711.39 = 10,605.34/x
  3. Step 3: Cross multiply
    20,463.10x = 30,711.39 × 10,605.34
  4. Step 4: Simplify right side
    20,463.10x = 325,704,732.82
  5. Step 5: Solve for x
    x = 325,704,732.82/20,463.10
  6. Step 6: Final answer
    x = 15,916.69

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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.