Home / 28,800.90-43,198.11-21,416.40

Finding the Fourth Proportional to 28,800.90, 43,198.11 and 21,416.40

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Solution

The fourth proportional to 28,800.90, 43,198.11 and 21,416.40 is: 32,122.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.90 : 43,198.11 = 21,416.40 : x
  2. Step 2: Convert to fraction form
    28,800.90/43,198.11 = 21,416.40/x
  3. Step 3: Cross multiply
    28,800.90x = 43,198.11 × 21,416.40
  4. Step 4: Simplify right side
    28,800.90x = 925,148,003.00
  5. Step 5: Solve for x
    x = 925,148,003.00/28,800.90
  6. Step 6: Final answer
    x = 32,122.19

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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.