Home / 30,939.90-46,402.42-14,283.94

Finding the Fourth Proportional to 30,939.90, 46,402.42 and 14,283.94

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Solution

The fourth proportional to 30,939.90, 46,402.42 and 14,283.94 is: 21,422.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.90 : 46,402.42 = 14,283.94 : x
  2. Step 2: Convert to fraction form
    30,939.90/46,402.42 = 14,283.94/x
  3. Step 3: Cross multiply
    30,939.90x = 46,402.42 × 14,283.94
  4. Step 4: Simplify right side
    30,939.90x = 662,809,144.41
  5. Step 5: Solve for x
    x = 662,809,144.41/30,939.90
  6. Step 6: Final answer
    x = 21,422.47

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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.