Home / 30,602.08-42,239.84-19,993.44

Finding the Fourth Proportional to 30,602.08, 42,239.84 and 19,993.44

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Solution

The fourth proportional to 30,602.08, 42,239.84 and 19,993.44 is: 27,596.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,602.08 : 42,239.84 = 19,993.44 : x
  2. Step 2: Convert to fraction form
    30,602.08/42,239.84 = 19,993.44/x
  3. Step 3: Cross multiply
    30,602.08x = 42,239.84 × 19,993.44
  4. Step 4: Simplify right side
    30,602.08x = 844,519,706.65
  5. Step 5: Solve for x
    x = 844,519,706.65/30,602.08
  6. Step 6: Final answer
    x = 27,596.81

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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.