Home / 36,907.38-50,931.90-20,991.81

Finding the Fourth Proportional to 36,907.38, 50,931.90 and 20,991.81

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Solution

The fourth proportional to 36,907.38, 50,931.90 and 20,991.81 is: 28,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,907.38 : 50,931.90 = 20,991.81 : x
  2. Step 2: Convert to fraction form
    36,907.38/50,931.90 = 20,991.81/x
  3. Step 3: Cross multiply
    36,907.38x = 50,931.90 × 20,991.81
  4. Step 4: Simplify right side
    36,907.38x = 1,069,152,767.74
  5. Step 5: Solve for x
    x = 1,069,152,767.74/36,907.38
  6. Step 6: Final answer
    x = 28,968.54

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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.