Home / 19,913.70-29,860.80-11,364.15

Finding the Fourth Proportional to 19,913.70, 29,860.80 and 11,364.15

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Solution

The fourth proportional to 19,913.70, 29,860.80 and 11,364.15 is: 17,040.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.70 : 29,860.80 = 11,364.15 : x
  2. Step 2: Convert to fraction form
    19,913.70/29,860.80 = 11,364.15/x
  3. Step 3: Cross multiply
    19,913.70x = 29,860.80 × 11,364.15
  4. Step 4: Simplify right side
    19,913.70x = 339,342,461.02
  5. Step 5: Solve for x
    x = 339,342,461.02/19,913.70
  6. Step 6: Final answer
    x = 17,040.66

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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.