Home / 25,279.72-37,894.21-12,761.86

Finding the Fourth Proportional to 25,279.72, 37,894.21 and 12,761.86

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Solution

The fourth proportional to 25,279.72, 37,894.21 and 12,761.86 is: 19,129.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,279.72 : 37,894.21 = 12,761.86 : x
  2. Step 2: Convert to fraction form
    25,279.72/37,894.21 = 12,761.86/x
  3. Step 3: Cross multiply
    25,279.72x = 37,894.21 × 12,761.86
  4. Step 4: Simplify right side
    25,279.72x = 483,600,602.83
  5. Step 5: Solve for x
    x = 483,600,602.83/25,279.72
  6. Step 6: Final answer
    x = 19,129.98

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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.