Home / 28,975.86-43,478.37-21,595.14

Finding the Fourth Proportional to 28,975.86, 43,478.37 and 21,595.14

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Solution

The fourth proportional to 28,975.86, 43,478.37 and 21,595.14 is: 32,403.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,975.86 : 43,478.37 = 21,595.14 : x
  2. Step 2: Convert to fraction form
    28,975.86/43,478.37 = 21,595.14/x
  3. Step 3: Cross multiply
    28,975.86x = 43,478.37 × 21,595.14
  4. Step 4: Simplify right side
    28,975.86x = 938,921,487.12
  5. Step 5: Solve for x
    x = 938,921,487.12/28,975.86
  6. Step 6: Final answer
    x = 32,403.58

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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.