Home / 28,580.66-42,898.60-13,799.96

Finding the Fourth Proportional to 28,580.66, 42,898.60 and 13,799.96

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Solution

The fourth proportional to 28,580.66, 42,898.60 and 13,799.96 is: 20,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.66 : 42,898.60 = 13,799.96 : x
  2. Step 2: Convert to fraction form
    28,580.66/42,898.60 = 13,799.96/x
  3. Step 3: Cross multiply
    28,580.66x = 42,898.60 × 13,799.96
  4. Step 4: Simplify right side
    28,580.66x = 591,998,964.06
  5. Step 5: Solve for x
    x = 591,998,964.06/28,580.66
  6. Step 6: Final answer
    x = 20,713.27

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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.