Home / 52,020.25-71,787.43-28,146.40

Finding the Fourth Proportional to 52,020.25, 71,787.43 and 28,146.40

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Solution

The fourth proportional to 52,020.25, 71,787.43 and 28,146.40 is: 38,841.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,020.25 : 71,787.43 = 28,146.40 : x
  2. Step 2: Convert to fraction form
    52,020.25/71,787.43 = 28,146.40/x
  3. Step 3: Cross multiply
    52,020.25x = 71,787.43 × 28,146.40
  4. Step 4: Simplify right side
    52,020.25x = 2,020,557,575.47
  5. Step 5: Solve for x
    x = 2,020,557,575.47/52,020.25
  6. Step 6: Final answer
    x = 38,841.75

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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.