Home / 18,431.84-27,637.50-10,938.44

Finding the Fourth Proportional to 18,431.84, 27,637.50 and 10,938.44

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Solution

The fourth proportional to 18,431.84, 27,637.50 and 10,938.44 is: 16,401.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.84 : 27,637.50 = 10,938.44 : x
  2. Step 2: Convert to fraction form
    18,431.84/27,637.50 = 10,938.44/x
  3. Step 3: Cross multiply
    18,431.84x = 27,637.50 × 10,938.44
  4. Step 4: Simplify right side
    18,431.84x = 302,311,135.50
  5. Step 5: Solve for x
    x = 302,311,135.50/18,431.84
  6. Step 6: Final answer
    x = 16,401.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.