Home / 36,907.15-50,929.98-20,991.25

Finding the Fourth Proportional to 36,907.15, 50,929.98 and 20,991.25

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Solution

The fourth proportional to 36,907.15, 50,929.98 and 20,991.25 is: 28,966.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,907.15 : 50,929.98 = 20,991.25 : x
  2. Step 2: Convert to fraction form
    36,907.15/50,929.98 = 20,991.25/x
  3. Step 3: Cross multiply
    36,907.15x = 50,929.98 × 20,991.25
  4. Step 4: Simplify right side
    36,907.15x = 1,069,083,942.68
  5. Step 5: Solve for x
    x = 1,069,083,942.68/36,907.15
  6. Step 6: Final answer
    x = 28,966.86

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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.