Home / 28,766.34-43,083.09-28,285.20

Finding the Fourth Proportional to 28,766.34, 43,083.09 and 28,285.20

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Solution

The fourth proportional to 28,766.34, 43,083.09 and 28,285.20 is: 42,362.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.34 : 43,083.09 = 28,285.20 : x
  2. Step 2: Convert to fraction form
    28,766.34/43,083.09 = 28,285.20/x
  3. Step 3: Cross multiply
    28,766.34x = 43,083.09 × 28,285.20
  4. Step 4: Simplify right side
    28,766.34x = 1,218,613,817.27
  5. Step 5: Solve for x
    x = 1,218,613,817.27/28,766.34
  6. Step 6: Final answer
    x = 42,362.49

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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.