Home / 30,706.61-46,039.48-11,988.38

Finding the Fourth Proportional to 30,706.61, 46,039.48 and 11,988.38

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Solution

The fourth proportional to 30,706.61, 46,039.48 and 11,988.38 is: 17,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,706.61 : 46,039.48 = 11,988.38 : x
  2. Step 2: Convert to fraction form
    30,706.61/46,039.48 = 11,988.38/x
  3. Step 3: Cross multiply
    30,706.61x = 46,039.48 × 11,988.38
  4. Step 4: Simplify right side
    30,706.61x = 551,938,866.37
  5. Step 5: Solve for x
    x = 551,938,866.37/30,706.61
  6. Step 6: Final answer
    x = 17,974.60

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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.