Home / 30,719.88-46,020.70-18,838.96

Finding the Fourth Proportional to 30,719.88, 46,020.70 and 18,838.96

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Solution

The fourth proportional to 30,719.88, 46,020.70 and 18,838.96 is: 28,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,719.88 : 46,020.70 = 18,838.96 : x
  2. Step 2: Convert to fraction form
    30,719.88/46,020.70 = 18,838.96/x
  3. Step 3: Cross multiply
    30,719.88x = 46,020.70 × 18,838.96
  4. Step 4: Simplify right side
    30,719.88x = 866,982,126.47
  5. Step 5: Solve for x
    x = 866,982,126.47/30,719.88
  6. Step 6: Final answer
    x = 28,222.18

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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.