Home / 20,897.03-31,350.73-10,371.99

Finding the Fourth Proportional to 20,897.03, 31,350.73 and 10,371.99

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Solution

The fourth proportional to 20,897.03, 31,350.73 and 10,371.99 is: 15,560.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.03 : 31,350.73 = 10,371.99 : x
  2. Step 2: Convert to fraction form
    20,897.03/31,350.73 = 10,371.99/x
  3. Step 3: Cross multiply
    20,897.03x = 31,350.73 × 10,371.99
  4. Step 4: Simplify right side
    20,897.03x = 325,169,458.05
  5. Step 5: Solve for x
    x = 325,169,458.05/20,897.03
  6. Step 6: Final answer
    x = 15,560.56

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1.5x scale

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.