Home / 20,697.04-28,563.60-11,622.20

Finding the Fourth Proportional to 20,697.04, 28,563.60 and 11,622.20

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Solution

The fourth proportional to 20,697.04, 28,563.60 and 11,622.20 is: 16,039.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.04 : 28,563.60 = 11,622.20 : x
  2. Step 2: Convert to fraction form
    20,697.04/28,563.60 = 11,622.20/x
  3. Step 3: Cross multiply
    20,697.04x = 28,563.60 × 11,622.20
  4. Step 4: Simplify right side
    20,697.04x = 331,971,871.92
  5. Step 5: Solve for x
    x = 331,971,871.92/20,697.04
  6. Step 6: Final answer
    x = 16,039.58

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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.