Home / 36,754.80-50,720.10-20,840.34

Finding the Fourth Proportional to 36,754.80, 50,720.10 and 20,840.34

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Solution

The fourth proportional to 36,754.80, 50,720.10 and 20,840.34 is: 28,758.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,754.80 : 50,720.10 = 20,840.34 : x
  2. Step 2: Convert to fraction form
    36,754.80/50,720.10 = 20,840.34/x
  3. Step 3: Cross multiply
    36,754.80x = 50,720.10 × 20,840.34
  4. Step 4: Simplify right side
    36,754.80x = 1,057,024,128.83
  5. Step 5: Solve for x
    x = 1,057,024,128.83/36,754.80
  6. Step 6: Final answer
    x = 28,758.81

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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.