Home / 28,800.90-43,157.52-21,370.50

Finding the Fourth Proportional to 28,800.90, 43,157.52 and 21,370.50

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Solution

The fourth proportional to 28,800.90, 43,157.52 and 21,370.50 is: 32,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.90 : 43,157.52 = 21,370.50 : x
  2. Step 2: Convert to fraction form
    28,800.90/43,157.52 = 21,370.50/x
  3. Step 3: Cross multiply
    28,800.90x = 43,157.52 × 21,370.50
  4. Step 4: Simplify right side
    28,800.90x = 922,297,781.16
  5. Step 5: Solve for x
    x = 922,297,781.16/28,800.90
  6. Step 6: Final answer
    x = 32,023.23

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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.