Home / 30,742.23-46,127.93-18,286.81

Finding the Fourth Proportional to 30,742.23, 46,127.93 and 18,286.81

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Solution

The fourth proportional to 30,742.23, 46,127.93 and 18,286.81 is: 27,438.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,742.23 : 46,127.93 = 18,286.81 : x
  2. Step 2: Convert to fraction form
    30,742.23/46,127.93 = 18,286.81/x
  3. Step 3: Cross multiply
    30,742.23x = 46,127.93 × 18,286.81
  4. Step 4: Simplify right side
    30,742.23x = 843,532,847.18
  5. Step 5: Solve for x
    x = 843,532,847.18/30,742.23
  6. Step 6: Final answer
    x = 27,438.89

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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.