Home / 28,878.14-39,849.95-16,777.55

Finding the Fourth Proportional to 28,878.14, 39,849.95 and 16,777.55

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Solution

The fourth proportional to 28,878.14, 39,849.95 and 16,777.55 is: 23,151.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,878.14 : 39,849.95 = 16,777.55 : x
  2. Step 2: Convert to fraction form
    28,878.14/39,849.95 = 16,777.55/x
  3. Step 3: Cross multiply
    28,878.14x = 39,849.95 × 16,777.55
  4. Step 4: Simplify right side
    28,878.14x = 668,584,245.49
  5. Step 5: Solve for x
    x = 668,584,245.49/28,878.14
  6. Step 6: Final answer
    x = 23,151.92

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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.