Home / 19,866.52-27,421.94-12,792.94

Finding the Fourth Proportional to 19,866.52, 27,421.94 and 12,792.94

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Solution

The fourth proportional to 19,866.52, 27,421.94 and 12,792.94 is: 17,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.52 : 27,421.94 = 12,792.94 : x
  2. Step 2: Convert to fraction form
    19,866.52/27,421.94 = 12,792.94/x
  3. Step 3: Cross multiply
    19,866.52x = 27,421.94 × 12,792.94
  4. Step 4: Simplify right side
    19,866.52x = 350,807,233.10
  5. Step 5: Solve for x
    x = 350,807,233.10/19,866.52
  6. Step 6: Final answer
    x = 17,658.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.