Home / 52,021.25-71,788.81-28,147.40

Finding the Fourth Proportional to 52,021.25, 71,788.81 and 28,147.40

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Solution

The fourth proportional to 52,021.25, 71,788.81 and 28,147.40 is: 38,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,021.25 : 71,788.81 = 28,147.40 : x
  2. Step 2: Convert to fraction form
    52,021.25/71,788.81 = 28,147.40/x
  3. Step 3: Cross multiply
    52,021.25x = 71,788.81 × 28,147.40
  4. Step 4: Simplify right side
    52,021.25x = 2,020,668,350.59
  5. Step 5: Solve for x
    x = 2,020,668,350.59/52,021.25
  6. Step 6: Final answer
    x = 38,843.13

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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.