Home / 18,424.21-25,423.99-10,357.42

Finding the Fourth Proportional to 18,424.21, 25,423.99 and 10,357.42

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Solution

The fourth proportional to 18,424.21, 25,423.99 and 10,357.42 is: 14,292.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.21 : 25,423.99 = 10,357.42 : x
  2. Step 2: Convert to fraction form
    18,424.21/25,423.99 = 10,357.42/x
  3. Step 3: Cross multiply
    18,424.21x = 25,423.99 × 10,357.42
  4. Step 4: Simplify right side
    18,424.21x = 263,326,942.51
  5. Step 5: Solve for x
    x = 263,326,942.51/18,424.21
  6. Step 6: Final answer
    x = 14,292.44

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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.