Home / 30,239.82-45,352.80-11,521.98

Finding the Fourth Proportional to 30,239.82, 45,352.80 and 11,521.98

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Solution

The fourth proportional to 30,239.82, 45,352.80 and 11,521.98 is: 17,280.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.82 : 45,352.80 = 11,521.98 : x
  2. Step 2: Convert to fraction form
    30,239.82/45,352.80 = 11,521.98/x
  3. Step 3: Cross multiply
    30,239.82x = 45,352.80 × 11,521.98
  4. Step 4: Simplify right side
    30,239.82x = 522,554,054.54
  5. Step 5: Solve for x
    x = 522,554,054.54/30,239.82
  6. Step 6: Final answer
    x = 17,280.33

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1.5x scale

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.