Home / 19,898.40-29,847.60-18,586.20

Finding the Fourth Proportional to 19,898.40, 29,847.60 and 18,586.20

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Solution

The fourth proportional to 19,898.40, 29,847.60 and 18,586.20 is: 27,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.40 : 29,847.60 = 18,586.20 : x
  2. Step 2: Convert to fraction form
    19,898.40/29,847.60 = 18,586.20/x
  3. Step 3: Cross multiply
    19,898.40x = 29,847.60 × 18,586.20
  4. Step 4: Simplify right side
    19,898.40x = 554,753,463.12
  5. Step 5: Solve for x
    x = 554,753,463.12/19,898.40
  6. Step 6: Final answer
    x = 27,879.30

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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.