Home / 20,899.03-31,353.73-10,373.99

Finding the Fourth Proportional to 20,899.03, 31,353.73 and 10,373.99

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Solution

The fourth proportional to 20,899.03, 31,353.73 and 10,373.99 is: 15,563.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.03 : 31,353.73 = 10,373.99 : x
  2. Step 2: Convert to fraction form
    20,899.03/31,353.73 = 10,373.99/x
  3. Step 3: Cross multiply
    20,899.03x = 31,353.73 × 10,373.99
  4. Step 4: Simplify right side
    20,899.03x = 325,263,281.48
  5. Step 5: Solve for x
    x = 325,263,281.48/20,899.03
  6. Step 6: Final answer
    x = 15,563.56

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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.