Home / 19,782.30-29,676.37-5,740.50

Finding the Fourth Proportional to 19,782.30, 29,676.37 and 5,740.50

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Solution

The fourth proportional to 19,782.30, 29,676.37 and 5,740.50 is: 8,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.30 : 29,676.37 = 5,740.50 : x
  2. Step 2: Convert to fraction form
    19,782.30/29,676.37 = 5,740.50/x
  3. Step 3: Cross multiply
    19,782.30x = 29,676.37 × 5,740.50
  4. Step 4: Simplify right side
    19,782.30x = 170,357,173.28
  5. Step 5: Solve for x
    x = 170,357,173.28/19,782.30
  6. Step 6: Final answer
    x = 8,611.60

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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.