Home / 39,555.30-54,586.34-21,650.30

Finding the Fourth Proportional to 39,555.30, 54,586.34 and 21,650.30

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Solution

The fourth proportional to 39,555.30, 54,586.34 and 21,650.30 is: 29,877.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,555.30 : 54,586.34 = 21,650.30 : x
  2. Step 2: Convert to fraction form
    39,555.30/54,586.34 = 21,650.30/x
  3. Step 3: Cross multiply
    39,555.30x = 54,586.34 × 21,650.30
  4. Step 4: Simplify right side
    39,555.30x = 1,181,810,636.90
  5. Step 5: Solve for x
    x = 1,181,810,636.90/39,555.30
  6. Step 6: Final answer
    x = 29,877.43

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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.