Home / 20,274.76-30,391.36-9,729.36

Finding the Fourth Proportional to 20,274.76, 30,391.36 and 9,729.36

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Solution

The fourth proportional to 20,274.76, 30,391.36 and 9,729.36 is: 14,584.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.76 : 30,391.36 = 9,729.36 : x
  2. Step 2: Convert to fraction form
    20,274.76/30,391.36 = 9,729.36/x
  3. Step 3: Cross multiply
    20,274.76x = 30,391.36 × 9,729.36
  4. Step 4: Simplify right side
    20,274.76x = 295,688,482.33
  5. Step 5: Solve for x
    x = 295,688,482.33/20,274.76
  6. Step 6: Final answer
    x = 14,584.07

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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.