Home / 18,738.41-28,124.01-10,427.81

Finding the Fourth Proportional to 18,738.41, 28,124.01 and 10,427.81

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Solution

The fourth proportional to 18,738.41, 28,124.01 and 10,427.81 is: 15,650.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.41 : 28,124.01 = 10,427.81 : x
  2. Step 2: Convert to fraction form
    18,738.41/28,124.01 = 10,427.81/x
  3. Step 3: Cross multiply
    18,738.41x = 28,124.01 × 10,427.81
  4. Step 4: Simplify right side
    18,738.41x = 293,271,692.10
  5. Step 5: Solve for x
    x = 293,271,692.10/18,738.41
  6. Step 6: Final answer
    x = 15,650.84

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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.