Home / 19,675.80-29,513.46-11,780.52

Finding the Fourth Proportional to 19,675.80, 29,513.46 and 11,780.52

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Solution

The fourth proportional to 19,675.80, 29,513.46 and 11,780.52 is: 17,670.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,675.80 : 29,513.46 = 11,780.52 : x
  2. Step 2: Convert to fraction form
    19,675.80/29,513.46 = 11,780.52/x
  3. Step 3: Cross multiply
    19,675.80x = 29,513.46 × 11,780.52
  4. Step 4: Simplify right side
    19,675.80x = 347,683,905.80
  5. Step 5: Solve for x
    x = 347,683,905.80/19,675.80
  6. Step 6: Final answer
    x = 17,670.64

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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.