Home / 18,515.74-25,563.64-16,522.87

Finding the Fourth Proportional to 18,515.74, 25,563.64 and 16,522.87

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Solution

The fourth proportional to 18,515.74, 25,563.64 and 16,522.87 is: 22,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.74 : 25,563.64 = 16,522.87 : x
  2. Step 2: Convert to fraction form
    18,515.74/25,563.64 = 16,522.87/x
  3. Step 3: Cross multiply
    18,515.74x = 25,563.64 × 16,522.87
  4. Step 4: Simplify right side
    18,515.74x = 422,384,572.63
  5. Step 5: Solve for x
    x = 422,384,572.63/18,515.74
  6. Step 6: Final answer
    x = 22,812.20

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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.