Home / 30,178.17-41,687.87-28,701.95

Finding the Fourth Proportional to 30,178.17, 41,687.87 and 28,701.95

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Solution

The fourth proportional to 30,178.17, 41,687.87 and 28,701.95 is: 39,648.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,178.17 : 41,687.87 = 28,701.95 : x
  2. Step 2: Convert to fraction form
    30,178.17/41,687.87 = 28,701.95/x
  3. Step 3: Cross multiply
    30,178.17x = 41,687.87 × 28,701.95
  4. Step 4: Simplify right side
    30,178.17x = 1,196,522,808.40
  5. Step 5: Solve for x
    x = 1,196,522,808.40/30,178.17
  6. Step 6: Final answer
    x = 39,648.62

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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.