Home / 30,918.50-46,381.39-9,851.21

Finding the Fourth Proportional to 30,918.50, 46,381.39 and 9,851.21

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Solution

The fourth proportional to 30,918.50, 46,381.39 and 9,851.21 is: 14,777.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,918.50 : 46,381.39 = 9,851.21 : x
  2. Step 2: Convert to fraction form
    30,918.50/46,381.39 = 9,851.21/x
  3. Step 3: Cross multiply
    30,918.50x = 46,381.39 × 9,851.21
  4. Step 4: Simplify right side
    30,918.50x = 456,912,812.98
  5. Step 5: Solve for x
    x = 456,912,812.98/30,918.50
  6. Step 6: Final answer
    x = 14,777.97

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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.