Home / 20,897.67-28,837.80-11,466.03

Finding the Fourth Proportional to 20,897.67, 28,837.80 and 11,466.03

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Solution

The fourth proportional to 20,897.67, 28,837.80 and 11,466.03 is: 15,822.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.67 : 28,837.80 = 11,466.03 : x
  2. Step 2: Convert to fraction form
    20,897.67/28,837.80 = 11,466.03/x
  3. Step 3: Cross multiply
    20,897.67x = 28,837.80 × 11,466.03
  4. Step 4: Simplify right side
    20,897.67x = 330,655,079.93
  5. Step 5: Solve for x
    x = 330,655,079.93/20,897.67
  6. Step 6: Final answer
    x = 15,822.58

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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.