Home / 28,405.51-39,199.75-16,475.90

Finding the Fourth Proportional to 28,405.51, 39,199.75 and 16,475.90

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Solution

The fourth proportional to 28,405.51, 39,199.75 and 16,475.90 is: 22,736.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.51 : 39,199.75 = 16,475.90 : x
  2. Step 2: Convert to fraction form
    28,405.51/39,199.75 = 16,475.90/x
  3. Step 3: Cross multiply
    28,405.51x = 39,199.75 × 16,475.90
  4. Step 4: Simplify right side
    28,405.51x = 645,850,923.84
  5. Step 5: Solve for x
    x = 645,850,923.84/28,405.51
  6. Step 6: Final answer
    x = 22,736.82

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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.