Home / 28,190.63-42,287.92-11,323.64

Finding the Fourth Proportional to 28,190.63, 42,287.92 and 11,323.64

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Solution

The fourth proportional to 28,190.63, 42,287.92 and 11,323.64 is: 16,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.63 : 42,287.92 = 11,323.64 : x
  2. Step 2: Convert to fraction form
    28,190.63/42,287.92 = 11,323.64/x
  3. Step 3: Cross multiply
    28,190.63x = 42,287.92 × 11,323.64
  4. Step 4: Simplify right side
    28,190.63x = 478,853,182.43
  5. Step 5: Solve for x
    x = 478,853,182.43/28,190.63
  6. Step 6: Final answer
    x = 16,986.25

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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.