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Finding the Fourth Proportional to 56,006.46, 84,006.90 and 20,943.54

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Solution

The fourth proportional to 56,006.46, 84,006.90 and 20,943.54 is: 31,414.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,006.46 : 84,006.90 = 20,943.54 : x
  2. Step 2: Convert to fraction form
    56,006.46/84,006.90 = 20,943.54/x
  3. Step 3: Cross multiply
    56,006.46x = 84,006.90 × 20,943.54
  4. Step 4: Simplify right side
    56,006.46x = 1,759,401,870.43
  5. Step 5: Solve for x
    x = 1,759,401,870.43/56,006.46
  6. Step 6: Final answer
    x = 31,414.27

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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.