Home / 42,855.03-64,324.00-20,684.01

Finding the Fourth Proportional to 42,855.03, 64,324.00 and 20,684.01

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Solution

The fourth proportional to 42,855.03, 64,324.00 and 20,684.01 is: 31,046.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,855.03 : 64,324.00 = 20,684.01 : x
  2. Step 2: Convert to fraction form
    42,855.03/64,324.00 = 20,684.01/x
  3. Step 3: Cross multiply
    42,855.03x = 64,324.00 × 20,684.01
  4. Step 4: Simplify right side
    42,855.03x = 1,330,477,834.20
  5. Step 5: Solve for x
    x = 1,330,477,834.20/42,855.03
  6. Step 6: Final answer
    x = 31,046.02

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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.