Home / 27,420.14-37,840.49-16,815.62

Finding the Fourth Proportional to 27,420.14, 37,840.49 and 16,815.62

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Solution

The fourth proportional to 27,420.14, 37,840.49 and 16,815.62 is: 23,205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.14 : 37,840.49 = 16,815.62 : x
  2. Step 2: Convert to fraction form
    27,420.14/37,840.49 = 16,815.62/x
  3. Step 3: Cross multiply
    27,420.14x = 37,840.49 × 16,815.62
  4. Step 4: Simplify right side
    27,420.14x = 636,311,027.17
  5. Step 5: Solve for x
    x = 636,311,027.17/27,420.14
  6. Step 6: Final answer
    x = 23,205.98

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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.