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Finding the Fourth Proportional to 18,573.13, 27,828.24 and 13,281.27

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Solution

The fourth proportional to 18,573.13, 27,828.24 and 13,281.27 is: 19,899.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.13 : 27,828.24 = 13,281.27 : x
  2. Step 2: Convert to fraction form
    18,573.13/27,828.24 = 13,281.27/x
  3. Step 3: Cross multiply
    18,573.13x = 27,828.24 × 13,281.27
  4. Step 4: Simplify right side
    18,573.13x = 369,594,369.06
  5. Step 5: Solve for x
    x = 369,594,369.06/18,573.13
  6. Step 6: Final answer
    x = 19,899.42

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1.5x scale

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.