Home / 28,765.08-43,118.40-21,825

Finding the Fourth Proportional to 28,765.08, 43,118.40 and 21,825

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Solution

The fourth proportional to 28,765.08, 43,118.40 and 21,825 is: 32,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,765.08 : 43,118.40 = 21,825 : x
  2. Step 2: Convert to fraction form
    28,765.08/43,118.40 = 21,825/x
  3. Step 3: Cross multiply
    28,765.08x = 43,118.40 × 21,825
  4. Step 4: Simplify right side
    28,765.08x = 941,059,080
  5. Step 5: Solve for x
    x = 941,059,080/28,765.08
  6. Step 6: Final answer
    x = 32,715.33

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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.