Home / 28,774.98-39,710.25-16,200.18

Finding the Fourth Proportional to 28,774.98, 39,710.25 and 16,200.18

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Solution

The fourth proportional to 28,774.98, 39,710.25 and 16,200.18 is: 22,356.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.98 : 39,710.25 = 16,200.18 : x
  2. Step 2: Convert to fraction form
    28,774.98/39,710.25 = 16,200.18/x
  3. Step 3: Cross multiply
    28,774.98x = 39,710.25 × 16,200.18
  4. Step 4: Simplify right side
    28,774.98x = 643,313,197.85
  5. Step 5: Solve for x
    x = 643,313,197.85/28,774.98
  6. Step 6: Final answer
    x = 22,356.69

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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.