Home / 19,481.52-26,880.48-12,405.36

Finding the Fourth Proportional to 19,481.52, 26,880.48 and 12,405.36

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Solution

The fourth proportional to 19,481.52, 26,880.48 and 12,405.36 is: 17,116.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,481.52 : 26,880.48 = 12,405.36 : x
  2. Step 2: Convert to fraction form
    19,481.52/26,880.48 = 12,405.36/x
  3. Step 3: Cross multiply
    19,481.52x = 26,880.48 × 12,405.36
  4. Step 4: Simplify right side
    19,481.52x = 333,462,031.37
  5. Step 5: Solve for x
    x = 333,462,031.37/19,481.52
  6. Step 6: Final answer
    x = 17,116.84

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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.