Home / 28,559.56-39,412.76-17,086.30

Finding the Fourth Proportional to 28,559.56, 39,412.76 and 17,086.30

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Solution

The fourth proportional to 28,559.56, 39,412.76 and 17,086.30 is: 23,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559.56 : 39,412.76 = 17,086.30 : x
  2. Step 2: Convert to fraction form
    28,559.56/39,412.76 = 17,086.30/x
  3. Step 3: Cross multiply
    28,559.56x = 39,412.76 × 17,086.30
  4. Step 4: Simplify right side
    28,559.56x = 673,418,241.19
  5. Step 5: Solve for x
    x = 673,418,241.19/28,559.56
  6. Step 6: Final answer
    x = 23,579.43

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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.