Home / 18,698.70-27,999.45-14,778.30

Finding the Fourth Proportional to 18,698.70, 27,999.45 and 14,778.30

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Solution

The fourth proportional to 18,698.70, 27,999.45 and 14,778.30 is: 22,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,698.70 : 27,999.45 = 14,778.30 : x
  2. Step 2: Convert to fraction form
    18,698.70/27,999.45 = 14,778.30/x
  3. Step 3: Cross multiply
    18,698.70x = 27,999.45 × 14,778.30
  4. Step 4: Simplify right side
    18,698.70x = 413,784,271.94
  5. Step 5: Solve for x
    x = 413,784,271.94/18,698.70
  6. Step 6: Final answer
    x = 22,129.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.