Home / 39,199.16-58,786.20-12,897.68

Finding the Fourth Proportional to 39,199.16, 58,786.20 and 12,897.68

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Solution

The fourth proportional to 39,199.16, 58,786.20 and 12,897.68 is: 19,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,199.16 : 58,786.20 = 12,897.68 : x
  2. Step 2: Convert to fraction form
    39,199.16/58,786.20 = 12,897.68/x
  3. Step 3: Cross multiply
    39,199.16x = 58,786.20 × 12,897.68
  4. Step 4: Simplify right side
    39,199.16x = 758,205,596.02
  5. Step 5: Solve for x
    x = 758,205,596.02/39,199.16
  6. Step 6: Final answer
    x = 19,342.39

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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.