Home / 38,074.85-52,542.63-21,078.73

Finding the Fourth Proportional to 38,074.85, 52,542.63 and 21,078.73

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Solution

The fourth proportional to 38,074.85, 52,542.63 and 21,078.73 is: 29,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,074.85 : 52,542.63 = 21,078.73 : x
  2. Step 2: Convert to fraction form
    38,074.85/52,542.63 = 21,078.73/x
  3. Step 3: Cross multiply
    38,074.85x = 52,542.63 × 21,078.73
  4. Step 4: Simplify right side
    38,074.85x = 1,107,531,779.90
  5. Step 5: Solve for x
    x = 1,107,531,779.90/38,074.85
  6. Step 6: Final answer
    x = 29,088.28

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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.