Home / 19,965.93-29,936.48-7,479.45

Finding the Fourth Proportional to 19,965.93, 29,936.48 and 7,479.45

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Solution

The fourth proportional to 19,965.93, 29,936.48 and 7,479.45 is: 11,214.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.93 : 29,936.48 = 7,479.45 : x
  2. Step 2: Convert to fraction form
    19,965.93/29,936.48 = 7,479.45/x
  3. Step 3: Cross multiply
    19,965.93x = 29,936.48 × 7,479.45
  4. Step 4: Simplify right side
    19,965.93x = 223,908,367.94
  5. Step 5: Solve for x
    x = 223,908,367.94/19,965.93
  6. Step 6: Final answer
    x = 11,214.52

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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.