Home / 39,422.10-54,400.50-21,516.96

Finding the Fourth Proportional to 39,422.10, 54,400.50 and 21,516.96

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Solution

The fourth proportional to 39,422.10, 54,400.50 and 21,516.96 is: 29,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,422.10 : 54,400.50 = 21,516.96 : x
  2. Step 2: Convert to fraction form
    39,422.10/54,400.50 = 21,516.96/x
  3. Step 3: Cross multiply
    39,422.10x = 54,400.50 × 21,516.96
  4. Step 4: Simplify right side
    39,422.10x = 1,170,533,382.48
  5. Step 5: Solve for x
    x = 1,170,533,382.48/39,422.10
  6. Step 6: Final answer
    x = 29,692.31

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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.