Home / 21,735.55-29,997.55-12,178.02

Finding the Fourth Proportional to 21,735.55, 29,997.55 and 12,178.02

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Solution

The fourth proportional to 21,735.55, 29,997.55 and 12,178.02 is: 16,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.55 : 29,997.55 = 12,178.02 : x
  2. Step 2: Convert to fraction form
    21,735.55/29,997.55 = 12,178.02/x
  3. Step 3: Cross multiply
    21,735.55x = 29,997.55 × 12,178.02
  4. Step 4: Simplify right side
    21,735.55x = 365,310,824.32
  5. Step 5: Solve for x
    x = 365,310,824.32/21,735.55
  6. Step 6: Final answer
    x = 16,807.06

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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.