Home / 30,438.27-41,990.28-19,102.14

Finding the Fourth Proportional to 30,438.27, 41,990.28 and 19,102.14

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Solution

The fourth proportional to 30,438.27, 41,990.28 and 19,102.14 is: 26,351.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438.27 : 41,990.28 = 19,102.14 : x
  2. Step 2: Convert to fraction form
    30,438.27/41,990.28 = 19,102.14/x
  3. Step 3: Cross multiply
    30,438.27x = 41,990.28 × 19,102.14
  4. Step 4: Simplify right side
    30,438.27x = 802,104,207.20
  5. Step 5: Solve for x
    x = 802,104,207.20/30,438.27
  6. Step 6: Final answer
    x = 26,351.83

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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.