Home / 20,676.56-28,507.02-15,019.52

Finding the Fourth Proportional to 20,676.56, 28,507.02 and 15,019.52

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Solution

The fourth proportional to 20,676.56, 28,507.02 and 15,019.52 is: 20,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.56 : 28,507.02 = 15,019.52 : x
  2. Step 2: Convert to fraction form
    20,676.56/28,507.02 = 15,019.52/x
  3. Step 3: Cross multiply
    20,676.56x = 28,507.02 × 15,019.52
  4. Step 4: Simplify right side
    20,676.56x = 428,161,757.03
  5. Step 5: Solve for x
    x = 428,161,757.03/20,676.56
  6. Step 6: Final answer
    x = 20,707.59

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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.