Home / 30,979.42-46,443.02-13,436.04

Finding the Fourth Proportional to 30,979.42, 46,443.02 and 13,436.04

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Solution

The fourth proportional to 30,979.42, 46,443.02 and 13,436.04 is: 20,142.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.42 : 46,443.02 = 13,436.04 : x
  2. Step 2: Convert to fraction form
    30,979.42/46,443.02 = 13,436.04/x
  3. Step 3: Cross multiply
    30,979.42x = 46,443.02 × 13,436.04
  4. Step 4: Simplify right side
    30,979.42x = 624,010,274.44
  5. Step 5: Solve for x
    x = 624,010,274.44/30,979.42
  6. Step 6: Final answer
    x = 20,142.74

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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.