Home / 29,638.82-40,882.87-20,683.05

Finding the Fourth Proportional to 29,638.82, 40,882.87 and 20,683.05

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Solution

The fourth proportional to 29,638.82, 40,882.87 and 20,683.05 is: 28,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,638.82 : 40,882.87 = 20,683.05 : x
  2. Step 2: Convert to fraction form
    29,638.82/40,882.87 = 20,683.05/x
  3. Step 3: Cross multiply
    29,638.82x = 40,882.87 × 20,683.05
  4. Step 4: Simplify right side
    29,638.82x = 845,582,430.52
  5. Step 5: Solve for x
    x = 845,582,430.52/29,638.82
  6. Step 6: Final answer
    x = 28,529.56

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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.