Home / 28,943.08-39,942.56-16,842.60

Finding the Fourth Proportional to 28,943.08, 39,942.56 and 16,842.60

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Solution

The fourth proportional to 28,943.08, 39,942.56 and 16,842.60 is: 23,243.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,943.08 : 39,942.56 = 16,842.60 : x
  2. Step 2: Convert to fraction form
    28,943.08/39,942.56 = 16,842.60/x
  3. Step 3: Cross multiply
    28,943.08x = 39,942.56 × 16,842.60
  4. Step 4: Simplify right side
    28,943.08x = 672,736,561.06
  5. Step 5: Solve for x
    x = 672,736,561.06/28,943.08
  6. Step 6: Final answer
    x = 23,243.43

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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.