Home / 21,994.47-30,345.23-12,433.43

Finding the Fourth Proportional to 21,994.47, 30,345.23 and 12,433.43

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Solution

The fourth proportional to 21,994.47, 30,345.23 and 12,433.43 is: 17,154.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,994.47 : 30,345.23 = 12,433.43 : x
  2. Step 2: Convert to fraction form
    21,994.47/30,345.23 = 12,433.43/x
  3. Step 3: Cross multiply
    21,994.47x = 30,345.23 × 12,433.43
  4. Step 4: Simplify right side
    21,994.47x = 377,295,399.99
  5. Step 5: Solve for x
    x = 377,295,399.99/21,994.47
  6. Step 6: Final answer
    x = 17,154.10

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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.