Home / 39,270.59-58,942.78-20,564.05

Finding the Fourth Proportional to 39,270.59, 58,942.78 and 20,564.05

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Solution

The fourth proportional to 39,270.59, 58,942.78 and 20,564.05 is: 30,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,270.59 : 58,942.78 = 20,564.05 : x
  2. Step 2: Convert to fraction form
    39,270.59/58,942.78 = 20,564.05/x
  3. Step 3: Cross multiply
    39,270.59x = 58,942.78 × 20,564.05
  4. Step 4: Simplify right side
    39,270.59x = 1,212,102,187.34
  5. Step 5: Solve for x
    x = 1,212,102,187.34/39,270.59
  6. Step 6: Final answer
    x = 30,865.40

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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.