Home / 20,897.06-28,837.41-11,698.48

Finding the Fourth Proportional to 20,897.06, 28,837.41 and 11,698.48

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Solution

The fourth proportional to 20,897.06, 28,837.41 and 11,698.48 is: 16,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.06 : 28,837.41 = 11,698.48 : x
  2. Step 2: Convert to fraction form
    20,897.06/28,837.41 = 11,698.48/x
  3. Step 3: Cross multiply
    20,897.06x = 28,837.41 × 11,698.48
  4. Step 4: Simplify right side
    20,897.06x = 337,353,864.14
  5. Step 5: Solve for x
    x = 337,353,864.14/20,897.06
  6. Step 6: Final answer
    x = 16,143.60

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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.