Home / 28,768.25-39,690.67-16,823.13

Finding the Fourth Proportional to 28,768.25, 39,690.67 and 16,823.13

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Solution

The fourth proportional to 28,768.25, 39,690.67 and 16,823.13 is: 23,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768.25 : 39,690.67 = 16,823.13 : x
  2. Step 2: Convert to fraction form
    28,768.25/39,690.67 = 16,823.13/x
  3. Step 3: Cross multiply
    28,768.25x = 39,690.67 × 16,823.13
  4. Step 4: Simplify right side
    28,768.25x = 667,721,301.20
  5. Step 5: Solve for x
    x = 667,721,301.20/28,768.25
  6. Step 6: Final answer
    x = 23,210.36

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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.