Home / 28,945.59-43,419.12-7,885.80

Finding the Fourth Proportional to 28,945.59, 43,419.12 and 7,885.80

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Solution

The fourth proportional to 28,945.59, 43,419.12 and 7,885.80 is: 11,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.59 : 43,419.12 = 7,885.80 : x
  2. Step 2: Convert to fraction form
    28,945.59/43,419.12 = 7,885.80/x
  3. Step 3: Cross multiply
    28,945.59x = 43,419.12 × 7,885.80
  4. Step 4: Simplify right side
    28,945.59x = 342,394,496.50
  5. Step 5: Solve for x
    x = 342,394,496.50/28,945.59
  6. Step 6: Final answer
    x = 11,828.90

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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.