Home / 19,888.20-27,442.26-12,336.36

Finding the Fourth Proportional to 19,888.20, 27,442.26 and 12,336.36

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Solution

The fourth proportional to 19,888.20, 27,442.26 and 12,336.36 is: 17,022.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.20 : 27,442.26 = 12,336.36 : x
  2. Step 2: Convert to fraction form
    19,888.20/27,442.26 = 12,336.36/x
  3. Step 3: Cross multiply
    19,888.20x = 27,442.26 × 12,336.36
  4. Step 4: Simplify right side
    19,888.20x = 338,537,598.57
  5. Step 5: Solve for x
    x = 338,537,598.57/19,888.20
  6. Step 6: Final answer
    x = 17,022.03

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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.