Home / 21,923.79-32,887.39-7,885.64

Finding the Fourth Proportional to 21,923.79, 32,887.39 and 7,885.64

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Solution

The fourth proportional to 21,923.79, 32,887.39 and 7,885.64 is: 11,829.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.79 : 32,887.39 = 7,885.64 : x
  2. Step 2: Convert to fraction form
    21,923.79/32,887.39 = 7,885.64/x
  3. Step 3: Cross multiply
    21,923.79x = 32,887.39 × 7,885.64
  4. Step 4: Simplify right side
    21,923.79x = 259,338,171.30
  5. Step 5: Solve for x
    x = 259,338,171.30/21,923.79
  6. Step 6: Final answer
    x = 11,829.08

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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.