Home / 28,464.51-39,286.18-16,980.17

Finding the Fourth Proportional to 28,464.51, 39,286.18 and 16,980.17

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Solution

The fourth proportional to 28,464.51, 39,286.18 and 16,980.17 is: 23,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.51 : 39,286.18 = 16,980.17 : x
  2. Step 2: Convert to fraction form
    28,464.51/39,286.18 = 16,980.17/x
  3. Step 3: Cross multiply
    28,464.51x = 39,286.18 × 16,980.17
  4. Step 4: Simplify right side
    28,464.51x = 667,085,839.84
  5. Step 5: Solve for x
    x = 667,085,839.84/28,464.51
  6. Step 6: Final answer
    x = 23,435.70

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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.