Home / 19,740.72-29,605.47-5,505.93

Finding the Fourth Proportional to 19,740.72, 29,605.47 and 5,505.93

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Solution

The fourth proportional to 19,740.72, 29,605.47 and 5,505.93 is: 8,257.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.72 : 29,605.47 = 5,505.93 : x
  2. Step 2: Convert to fraction form
    19,740.72/29,605.47 = 5,505.93/x
  3. Step 3: Cross multiply
    19,740.72x = 29,605.47 × 5,505.93
  4. Step 4: Simplify right side
    19,740.72x = 163,005,645.44
  5. Step 5: Solve for x
    x = 163,005,645.44/19,740.72
  6. Step 6: Final answer
    x = 8,257.33

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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.