Home / 28,606.25-42,922.34-13,812.41

Finding the Fourth Proportional to 28,606.25, 42,922.34 and 13,812.41

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Solution

The fourth proportional to 28,606.25, 42,922.34 and 13,812.41 is: 20,724.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.25 : 42,922.34 = 13,812.41 : x
  2. Step 2: Convert to fraction form
    28,606.25/42,922.34 = 13,812.41/x
  3. Step 3: Cross multiply
    28,606.25x = 42,922.34 × 13,812.41
  4. Step 4: Simplify right side
    28,606.25x = 592,860,958.24
  5. Step 5: Solve for x
    x = 592,860,958.24/28,606.25
  6. Step 6: Final answer
    x = 20,724.88

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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.