Home / 19,968.52-27,561.36-12,009.21

Finding the Fourth Proportional to 19,968.52, 27,561.36 and 12,009.21

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Solution

The fourth proportional to 19,968.52, 27,561.36 and 12,009.21 is: 16,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968.52 : 27,561.36 = 12,009.21 : x
  2. Step 2: Convert to fraction form
    19,968.52/27,561.36 = 12,009.21/x
  3. Step 3: Cross multiply
    19,968.52x = 27,561.36 × 12,009.21
  4. Step 4: Simplify right side
    19,968.52x = 330,990,160.13
  5. Step 5: Solve for x
    x = 330,990,160.13/19,968.52
  6. Step 6: Final answer
    x = 16,575.60

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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.