Home / 28,969.79-43,387.25-28,171.74

Finding the Fourth Proportional to 28,969.79, 43,387.25 and 28,171.74

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Solution

The fourth proportional to 28,969.79, 43,387.25 and 28,171.74 is: 42,192.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969.79 : 43,387.25 = 28,171.74 : x
  2. Step 2: Convert to fraction form
    28,969.79/43,387.25 = 28,171.74/x
  3. Step 3: Cross multiply
    28,969.79x = 43,387.25 × 28,171.74
  4. Step 4: Simplify right side
    28,969.79x = 1,222,294,396.74
  5. Step 5: Solve for x
    x = 1,222,294,396.74/28,969.79
  6. Step 6: Final answer
    x = 42,192.03

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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.