Home / 28,403.35-39,190.31-16,303.09

Finding the Fourth Proportional to 28,403.35, 39,190.31 and 16,303.09

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Solution

The fourth proportional to 28,403.35, 39,190.31 and 16,303.09 is: 22,494.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403.35 : 39,190.31 = 16,303.09 : x
  2. Step 2: Convert to fraction form
    28,403.35/39,190.31 = 16,303.09/x
  3. Step 3: Cross multiply
    28,403.35x = 39,190.31 × 16,303.09
  4. Step 4: Simplify right side
    28,403.35x = 638,923,151.06
  5. Step 5: Solve for x
    x = 638,923,151.06/28,403.35
  6. Step 6: Final answer
    x = 22,494.64

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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.