Home / 39,909.73-55,075.81-22,005.39

Finding the Fourth Proportional to 39,909.73, 55,075.81 and 22,005.39

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Solution

The fourth proportional to 39,909.73, 55,075.81 and 22,005.39 is: 30,367.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.73 : 55,075.81 = 22,005.39 : x
  2. Step 2: Convert to fraction form
    39,909.73/55,075.81 = 22,005.39/x
  3. Step 3: Cross multiply
    39,909.73x = 55,075.81 × 22,005.39
  4. Step 4: Simplify right side
    39,909.73x = 1,211,964,678.62
  5. Step 5: Solve for x
    x = 1,211,964,678.62/39,909.73
  6. Step 6: Final answer
    x = 30,367.65

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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.