Home / 28,564.14-42,873.87-13,783.42

Finding the Fourth Proportional to 28,564.14, 42,873.87 and 13,783.42

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Solution

The fourth proportional to 28,564.14, 42,873.87 and 13,783.42 is: 20,688.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.14 : 42,873.87 = 13,783.42 : x
  2. Step 2: Convert to fraction form
    28,564.14/42,873.87 = 13,783.42/x
  3. Step 3: Cross multiply
    28,564.14x = 42,873.87 × 13,783.42
  4. Step 4: Simplify right side
    28,564.14x = 590,948,557.24
  5. Step 5: Solve for x
    x = 590,948,557.24/28,564.14
  6. Step 6: Final answer
    x = 20,688.48

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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.