Home / 28,709.25-42,986.70-16,210.59

Finding the Fourth Proportional to 28,709.25, 42,986.70 and 16,210.59

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Solution

The fourth proportional to 28,709.25, 42,986.70 and 16,210.59 is: 24,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.25 : 42,986.70 = 16,210.59 : x
  2. Step 2: Convert to fraction form
    28,709.25/42,986.70 = 16,210.59/x
  3. Step 3: Cross multiply
    28,709.25x = 42,986.70 × 16,210.59
  4. Step 4: Simplify right side
    28,709.25x = 696,839,769.15
  5. Step 5: Solve for x
    x = 696,839,769.15/28,709.25
  6. Step 6: Final answer
    x = 24,272.31

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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.