Home / 20,196.87-27,885.36-12,646.23

Finding the Fourth Proportional to 20,196.87, 27,885.36 and 12,646.23

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Solution

The fourth proportional to 20,196.87, 27,885.36 and 12,646.23 is: 17,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.87 : 27,885.36 = 12,646.23 : x
  2. Step 2: Convert to fraction form
    20,196.87/27,885.36 = 12,646.23/x
  3. Step 3: Cross multiply
    20,196.87x = 27,885.36 × 12,646.23
  4. Step 4: Simplify right side
    20,196.87x = 352,644,676.19
  5. Step 5: Solve for x
    x = 352,644,676.19/20,196.87
  6. Step 6: Final answer
    x = 17,460.36

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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.