Home / 19,790.19-29,681.19-5,747.22

Finding the Fourth Proportional to 19,790.19, 29,681.19 and 5,747.22

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Solution

The fourth proportional to 19,790.19, 29,681.19 and 5,747.22 is: 8,619.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.19 : 29,681.19 = 5,747.22 : x
  2. Step 2: Convert to fraction form
    19,790.19/29,681.19 = 5,747.22/x
  3. Step 3: Cross multiply
    19,790.19x = 29,681.19 × 5,747.22
  4. Step 4: Simplify right side
    19,790.19x = 170,584,328.79
  5. Step 5: Solve for x
    x = 170,584,328.79/19,790.19
  6. Step 6: Final answer
    x = 8,619.64

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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.