Home / 26,490.51-39,734.85-12,442.68

Finding the Fourth Proportional to 26,490.51, 39,734.85 and 12,442.68

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Solution

The fourth proportional to 26,490.51, 39,734.85 and 12,442.68 is: 18,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,490.51 : 39,734.85 = 12,442.68 : x
  2. Step 2: Convert to fraction form
    26,490.51/39,734.85 = 12,442.68/x
  3. Step 3: Cross multiply
    26,490.51x = 39,734.85 × 12,442.68
  4. Step 4: Simplify right side
    26,490.51x = 494,408,023.40
  5. Step 5: Solve for x
    x = 494,408,023.40/26,490.51
  6. Step 6: Final answer
    x = 18,663.59

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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.