Home / 28,042.34-42,084.36-13,255.79

Finding the Fourth Proportional to 28,042.34, 42,084.36 and 13,255.79

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Solution

The fourth proportional to 28,042.34, 42,084.36 and 13,255.79 is: 19,893.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.34 : 42,084.36 = 13,255.79 : x
  2. Step 2: Convert to fraction form
    28,042.34/42,084.36 = 13,255.79/x
  3. Step 3: Cross multiply
    28,042.34x = 42,084.36 × 13,255.79
  4. Step 4: Simplify right side
    28,042.34x = 557,861,228.02
  5. Step 5: Solve for x
    x = 557,861,228.02/28,042.34
  6. Step 6: Final answer
    x = 19,893.54

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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.