Home / 36,137.40-54,192.61-12,438.32

Finding the Fourth Proportional to 36,137.40, 54,192.61 and 12,438.32

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Solution

The fourth proportional to 36,137.40, 54,192.61 and 12,438.32 is: 18,652.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,137.40 : 54,192.61 = 12,438.32 : x
  2. Step 2: Convert to fraction form
    36,137.40/54,192.61 = 12,438.32/x
  3. Step 3: Cross multiply
    36,137.40x = 54,192.61 × 12,438.32
  4. Step 4: Simplify right side
    36,137.40x = 674,065,024.82
  5. Step 5: Solve for x
    x = 674,065,024.82/36,137.40
  6. Step 6: Final answer
    x = 18,652.84

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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.