Home / 30,586.92-45,849.40-20,727.20

Finding the Fourth Proportional to 30,586.92, 45,849.40 and 20,727.20

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Solution

The fourth proportional to 30,586.92, 45,849.40 and 20,727.20 is: 31,069.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,586.92 : 45,849.40 = 20,727.20 : x
  2. Step 2: Convert to fraction form
    30,586.92/45,849.40 = 20,727.20/x
  3. Step 3: Cross multiply
    30,586.92x = 45,849.40 × 20,727.20
  4. Step 4: Simplify right side
    30,586.92x = 950,329,683.68
  5. Step 5: Solve for x
    x = 950,329,683.68/30,586.92
  6. Step 6: Final answer
    x = 31,069.81

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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.