Home / 19,967.93-27,564.59-12,897.80

Finding the Fourth Proportional to 19,967.93, 27,564.59 and 12,897.80

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Solution

The fourth proportional to 19,967.93, 27,564.59 and 12,897.80 is: 17,804.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,967.93 : 27,564.59 = 12,897.80 : x
  2. Step 2: Convert to fraction form
    19,967.93/27,564.59 = 12,897.80/x
  3. Step 3: Cross multiply
    19,967.93x = 27,564.59 × 12,897.80
  4. Step 4: Simplify right side
    19,967.93x = 355,522,568.90
  5. Step 5: Solve for x
    x = 355,522,568.90/19,967.93
  6. Step 6: Final answer
    x = 17,804.68

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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.