Home / 28,769.54-39,714.23-19,343.57

Finding the Fourth Proportional to 28,769.54, 39,714.23 and 19,343.57

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Solution

The fourth proportional to 28,769.54, 39,714.23 and 19,343.57 is: 26,702.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,769.54 : 39,714.23 = 19,343.57 : x
  2. Step 2: Convert to fraction form
    28,769.54/39,714.23 = 19,343.57/x
  3. Step 3: Cross multiply
    28,769.54x = 39,714.23 × 19,343.57
  4. Step 4: Simplify right side
    28,769.54x = 768,214,837.79
  5. Step 5: Solve for x
    x = 768,214,837.79/28,769.54
  6. Step 6: Final answer
    x = 26,702.37

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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.