Home / 20,560.56-28,365.36-13,004.04

Finding the Fourth Proportional to 20,560.56, 28,365.36 and 13,004.04

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Solution

The fourth proportional to 20,560.56, 28,365.36 and 13,004.04 is: 17,940.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.56 : 28,365.36 = 13,004.04 : x
  2. Step 2: Convert to fraction form
    20,560.56/28,365.36 = 13,004.04/x
  3. Step 3: Cross multiply
    20,560.56x = 28,365.36 × 13,004.04
  4. Step 4: Simplify right side
    20,560.56x = 368,864,276.05
  5. Step 5: Solve for x
    x = 368,864,276.05/20,560.56
  6. Step 6: Final answer
    x = 17,940.38

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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.