Home / 18,410.32-25,389.48-12,031.12

Finding the Fourth Proportional to 18,410.32, 25,389.48 and 12,031.12

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Solution

The fourth proportional to 18,410.32, 25,389.48 and 12,031.12 is: 16,591.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.32 : 25,389.48 = 12,031.12 : x
  2. Step 2: Convert to fraction form
    18,410.32/25,389.48 = 12,031.12/x
  3. Step 3: Cross multiply
    18,410.32x = 25,389.48 × 12,031.12
  4. Step 4: Simplify right side
    18,410.32x = 305,463,880.62
  5. Step 5: Solve for x
    x = 305,463,880.62/18,410.32
  6. Step 6: Final answer
    x = 16,591.99

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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.