Home / 28,306.90-39,065.70-16,976.82

Finding the Fourth Proportional to 28,306.90, 39,065.70 and 16,976.82

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Solution

The fourth proportional to 28,306.90, 39,065.70 and 16,976.82 is: 23,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.90 : 39,065.70 = 16,976.82 : x
  2. Step 2: Convert to fraction form
    28,306.90/39,065.70 = 16,976.82/x
  3. Step 3: Cross multiply
    28,306.90x = 39,065.70 × 16,976.82
  4. Step 4: Simplify right side
    28,306.90x = 663,211,357.07
  5. Step 5: Solve for x
    x = 663,211,357.07/28,306.90
  6. Step 6: Final answer
    x = 23,429.32

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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.