Home / 27,677.84-38,185.90-16,779.50

Finding the Fourth Proportional to 27,677.84, 38,185.90 and 16,779.50

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Solution

The fourth proportional to 27,677.84, 38,185.90 and 16,779.50 is: 23,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,677.84 : 38,185.90 = 16,779.50 : x
  2. Step 2: Convert to fraction form
    27,677.84/38,185.90 = 16,779.50/x
  3. Step 3: Cross multiply
    27,677.84x = 38,185.90 × 16,779.50
  4. Step 4: Simplify right side
    27,677.84x = 640,740,139.09
  5. Step 5: Solve for x
    x = 640,740,139.09/27,677.84
  6. Step 6: Final answer
    x = 23,149.93

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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.