Home / 52,021.31-71,788.90-28,147.46

Finding the Fourth Proportional to 52,021.31, 71,788.90 and 28,147.46

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Solution

The fourth proportional to 52,021.31, 71,788.90 and 28,147.46 is: 38,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,021.31 : 71,788.90 = 28,147.46 : x
  2. Step 2: Convert to fraction form
    52,021.31/71,788.90 = 28,147.46/x
  3. Step 3: Cross multiply
    52,021.31x = 71,788.90 × 28,147.46
  4. Step 4: Simplify right side
    52,021.31x = 2,020,675,050.46
  5. Step 5: Solve for x
    x = 2,020,675,050.46/52,021.31
  6. Step 6: Final answer
    x = 38,843.22

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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.