Home / 20,933.24-31,404.49-6,897.60

Finding the Fourth Proportional to 20,933.24, 31,404.49 and 6,897.60

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Solution

The fourth proportional to 20,933.24, 31,404.49 and 6,897.60 is: 10,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.24 : 31,404.49 = 6,897.60 : x
  2. Step 2: Convert to fraction form
    20,933.24/31,404.49 = 6,897.60/x
  3. Step 3: Cross multiply
    20,933.24x = 31,404.49 × 6,897.60
  4. Step 4: Simplify right side
    20,933.24x = 216,615,592.98
  5. Step 5: Solve for x
    x = 216,615,592.98/20,933.24
  6. Step 6: Final answer
    x = 10,347.92

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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.