Home / 39,897.44-59,859.81-13,620.63

Finding the Fourth Proportional to 39,897.44, 59,859.81 and 13,620.63

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Solution

The fourth proportional to 39,897.44, 59,859.81 and 13,620.63 is: 20,435.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.44 : 59,859.81 = 13,620.63 : x
  2. Step 2: Convert to fraction form
    39,897.44/59,859.81 = 13,620.63/x
  3. Step 3: Cross multiply
    39,897.44x = 59,859.81 × 13,620.63
  4. Step 4: Simplify right side
    39,897.44x = 815,328,323.88
  5. Step 5: Solve for x
    x = 815,328,323.88/39,897.44
  6. Step 6: Final answer
    x = 20,435.61

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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.