Home / 28,445.33-42,676.19-8,726.78

Finding the Fourth Proportional to 28,445.33, 42,676.19 and 8,726.78

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Solution

The fourth proportional to 28,445.33, 42,676.19 and 8,726.78 is: 13,092.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.33 : 42,676.19 = 8,726.78 : x
  2. Step 2: Convert to fraction form
    28,445.33/42,676.19 = 8,726.78/x
  3. Step 3: Cross multiply
    28,445.33x = 42,676.19 × 8,726.78
  4. Step 4: Simplify right side
    28,445.33x = 372,425,721.37
  5. Step 5: Solve for x
    x = 372,425,721.37/28,445.33
  6. Step 6: Final answer
    x = 13,092.68

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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.