Home / 20,430.06-30,629.52-10,563.05

Finding the Fourth Proportional to 20,430.06, 30,629.52 and 10,563.05

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Solution

The fourth proportional to 20,430.06, 30,629.52 and 10,563.05 is: 15,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430.06 : 30,629.52 = 10,563.05 : x
  2. Step 2: Convert to fraction form
    20,430.06/30,629.52 = 10,563.05/x
  3. Step 3: Cross multiply
    20,430.06x = 30,629.52 × 10,563.05
  4. Step 4: Simplify right side
    20,430.06x = 323,540,998.09
  5. Step 5: Solve for x
    x = 323,540,998.09/20,430.06
  6. Step 6: Final answer
    x = 15,836.52

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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.