Home / 20,923.54-31,381.84-6,883.74

Finding the Fourth Proportional to 20,923.54, 31,381.84 and 6,883.74

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Solution

The fourth proportional to 20,923.54, 31,381.84 and 6,883.74 is: 10,324.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.54 : 31,381.84 = 6,883.74 : x
  2. Step 2: Convert to fraction form
    20,923.54/31,381.84 = 6,883.74/x
  3. Step 3: Cross multiply
    20,923.54x = 31,381.84 × 6,883.74
  4. Step 4: Simplify right side
    20,923.54x = 216,024,427.28
  5. Step 5: Solve for x
    x = 216,024,427.28/20,923.54
  6. Step 6: Final answer
    x = 10,324.47

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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.