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Finding the Fourth Proportional to 19,720.58, 29,573.13 and 8,029.58

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Solution

The fourth proportional to 19,720.58, 29,573.13 and 8,029.58 is: 12,041.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.58 : 29,573.13 = 8,029.58 : x
  2. Step 2: Convert to fraction form
    19,720.58/29,573.13 = 8,029.58/x
  3. Step 3: Cross multiply
    19,720.58x = 29,573.13 × 8,029.58
  4. Step 4: Simplify right side
    19,720.58x = 237,459,813.19
  5. Step 5: Solve for x
    x = 237,459,813.19/19,720.58
  6. Step 6: Final answer
    x = 12,041.22

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.