Home / 20,647.40-28,494.03-11,696.18

Finding the Fourth Proportional to 20,647.40, 28,494.03 and 11,696.18

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Solution

The fourth proportional to 20,647.40, 28,494.03 and 11,696.18 is: 16,141.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.40 : 28,494.03 = 11,696.18 : x
  2. Step 2: Convert to fraction form
    20,647.40/28,494.03 = 11,696.18/x
  3. Step 3: Cross multiply
    20,647.40x = 28,494.03 × 11,696.18
  4. Step 4: Simplify right side
    20,647.40x = 333,271,161.34
  5. Step 5: Solve for x
    x = 333,271,161.34/20,647.40
  6. Step 6: Final answer
    x = 16,141.08

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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.