Home / 39,697.64-54,782.53-21,548.73

Finding the Fourth Proportional to 39,697.64, 54,782.53 and 21,548.73

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Solution

The fourth proportional to 39,697.64, 54,782.53 and 21,548.73 is: 29,737.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,697.64 : 54,782.53 = 21,548.73 : x
  2. Step 2: Convert to fraction form
    39,697.64/54,782.53 = 21,548.73/x
  3. Step 3: Cross multiply
    39,697.64x = 54,782.53 × 21,548.73
  4. Step 4: Simplify right side
    39,697.64x = 1,180,494,099.25
  5. Step 5: Solve for x
    x = 1,180,494,099.25/39,697.64
  6. Step 6: Final answer
    x = 29,737.13

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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.