Home / 36,720.45-55,098.90-20,937.60

Finding the Fourth Proportional to 36,720.45, 55,098.90 and 20,937.60

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Solution

The fourth proportional to 36,720.45, 55,098.90 and 20,937.60 is: 31,416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,720.45 : 55,098.90 = 20,937.60 : x
  2. Step 2: Convert to fraction form
    36,720.45/55,098.90 = 20,937.60/x
  3. Step 3: Cross multiply
    36,720.45x = 55,098.90 × 20,937.60
  4. Step 4: Simplify right side
    36,720.45x = 1,153,638,728.64
  5. Step 5: Solve for x
    x = 1,153,638,728.64/36,720.45
  6. Step 6: Final answer
    x = 31,416.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.