Home / 36,915.56-55,380.64-13,542.20

Finding the Fourth Proportional to 36,915.56, 55,380.64 and 13,542.20

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Solution

The fourth proportional to 36,915.56, 55,380.64 and 13,542.20 is: 20,315.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,915.56 : 55,380.64 = 13,542.20 : x
  2. Step 2: Convert to fraction form
    36,915.56/55,380.64 = 13,542.20/x
  3. Step 3: Cross multiply
    36,915.56x = 55,380.64 × 13,542.20
  4. Step 4: Simplify right side
    36,915.56x = 749,975,703.01
  5. Step 5: Solve for x
    x = 749,975,703.01/36,915.56
  6. Step 6: Final answer
    x = 20,315.98

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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.