Home / 20,581.81-30,849.41-9,465.55

Finding the Fourth Proportional to 20,581.81, 30,849.41 and 9,465.55

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Solution

The fourth proportional to 20,581.81, 30,849.41 and 9,465.55 is: 14,187.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,581.81 : 30,849.41 = 9,465.55 : x
  2. Step 2: Convert to fraction form
    20,581.81/30,849.41 = 9,465.55/x
  3. Step 3: Cross multiply
    20,581.81x = 30,849.41 × 9,465.55
  4. Step 4: Simplify right side
    20,581.81x = 292,006,579.37
  5. Step 5: Solve for x
    x = 292,006,579.37/20,581.81
  6. Step 6: Final answer
    x = 14,187.61

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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.