Home / 39,644.10-54,706.14-21,735.39

Finding the Fourth Proportional to 39,644.10, 54,706.14 and 21,735.39

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Solution

The fourth proportional to 39,644.10, 54,706.14 and 21,735.39 is: 29,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,644.10 : 54,706.14 = 21,735.39 : x
  2. Step 2: Convert to fraction form
    39,644.10/54,706.14 = 21,735.39/x
  3. Step 3: Cross multiply
    39,644.10x = 54,706.14 × 21,735.39
  4. Step 4: Simplify right side
    39,644.10x = 1,189,059,288.29
  5. Step 5: Solve for x
    x = 1,189,059,288.29/39,644.10
  6. Step 6: Final answer
    x = 29,993.35

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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.