Home / 30,481.12-42,072.80-17,737.28

Finding the Fourth Proportional to 30,481.12, 42,072.80 and 17,737.28

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Solution

The fourth proportional to 30,481.12, 42,072.80 and 17,737.28 is: 24,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.12 : 42,072.80 = 17,737.28 : x
  2. Step 2: Convert to fraction form
    30,481.12/42,072.80 = 17,737.28/x
  3. Step 3: Cross multiply
    30,481.12x = 42,072.80 × 17,737.28
  4. Step 4: Simplify right side
    30,481.12x = 746,257,033.98
  5. Step 5: Solve for x
    x = 746,257,033.98/30,481.12
  6. Step 6: Final answer
    x = 24,482.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.