Home / 19,822.26-27,355.41-10,869.78

Finding the Fourth Proportional to 19,822.26, 27,355.41 and 10,869.78

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Solution

The fourth proportional to 19,822.26, 27,355.41 and 10,869.78 is: 15,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,822.26 : 27,355.41 = 10,869.78 : x
  2. Step 2: Convert to fraction form
    19,822.26/27,355.41 = 10,869.78/x
  3. Step 3: Cross multiply
    19,822.26x = 27,355.41 × 10,869.78
  4. Step 4: Simplify right side
    19,822.26x = 297,347,288.51
  5. Step 5: Solve for x
    x = 297,347,288.51/19,822.26
  6. Step 6: Final answer
    x = 15,000.68

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1.5x scale

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.