Home / 18,296.45-25,267.04-15,628.31

Finding the Fourth Proportional to 18,296.45, 25,267.04 and 15,628.31

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Solution

The fourth proportional to 18,296.45, 25,267.04 and 15,628.31 is: 21,582.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.45 : 25,267.04 = 15,628.31 : x
  2. Step 2: Convert to fraction form
    18,296.45/25,267.04 = 15,628.31/x
  3. Step 3: Cross multiply
    18,296.45x = 25,267.04 × 15,628.31
  4. Step 4: Simplify right side
    18,296.45x = 394,880,929.43
  5. Step 5: Solve for x
    x = 394,880,929.43/18,296.45
  6. Step 6: Final answer
    x = 21,582.39

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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.