Home / 38,572.35-53,234.77-21,577.54

Finding the Fourth Proportional to 38,572.35, 53,234.77 and 21,577.54

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Solution

The fourth proportional to 38,572.35, 53,234.77 and 21,577.54 is: 29,779.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,572.35 : 53,234.77 = 21,577.54 : x
  2. Step 2: Convert to fraction form
    38,572.35/53,234.77 = 21,577.54/x
  3. Step 3: Cross multiply
    38,572.35x = 53,234.77 × 21,577.54
  4. Step 4: Simplify right side
    38,572.35x = 1,148,675,332.31
  5. Step 5: Solve for x
    x = 1,148,675,332.31/38,572.35
  6. Step 6: Final answer
    x = 29,779.76

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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.