Home / 20,645.06-28,494.33-12,259.94

Finding the Fourth Proportional to 20,645.06, 28,494.33 and 12,259.94

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Solution

The fourth proportional to 20,645.06, 28,494.33 and 12,259.94 is: 16,921.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.06 : 28,494.33 = 12,259.94 : x
  2. Step 2: Convert to fraction form
    20,645.06/28,494.33 = 12,259.94/x
  3. Step 3: Cross multiply
    20,645.06x = 28,494.33 × 12,259.94
  4. Step 4: Simplify right side
    20,645.06x = 349,338,776.14
  5. Step 5: Solve for x
    x = 349,338,776.14/20,645.06
  6. Step 6: Final answer
    x = 16,921.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.