Home / 19,786.77-29,681.70-5,747.02

Finding the Fourth Proportional to 19,786.77, 29,681.70 and 5,747.02

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Solution

The fourth proportional to 19,786.77, 29,681.70 and 5,747.02 is: 8,620.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.77 : 29,681.70 = 5,747.02 : x
  2. Step 2: Convert to fraction form
    19,786.77/29,681.70 = 5,747.02/x
  3. Step 3: Cross multiply
    19,786.77x = 29,681.70 × 5,747.02
  4. Step 4: Simplify right side
    19,786.77x = 170,581,394.74
  5. Step 5: Solve for x
    x = 170,581,394.74/19,786.77
  6. Step 6: Final answer
    x = 8,620.98

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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.