Home / 30,718.87-46,019.22-18,837.97

Finding the Fourth Proportional to 30,718.87, 46,019.22 and 18,837.97

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Solution

The fourth proportional to 30,718.87, 46,019.22 and 18,837.97 is: 28,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718.87 : 46,019.22 = 18,837.97 : x
  2. Step 2: Convert to fraction form
    30,718.87/46,019.22 = 18,837.97/x
  3. Step 3: Cross multiply
    30,718.87x = 46,019.22 × 18,837.97
  4. Step 4: Simplify right side
    30,718.87x = 866,908,685.78
  5. Step 5: Solve for x
    x = 866,908,685.78/30,718.87
  6. Step 6: Final answer
    x = 28,220.72

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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.