Home / 20,484.84-30,729.96-7,338.72

Finding the Fourth Proportional to 20,484.84, 30,729.96 and 7,338.72

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Solution

The fourth proportional to 20,484.84, 30,729.96 and 7,338.72 is: 11,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.84 : 30,729.96 = 7,338.72 : x
  2. Step 2: Convert to fraction form
    20,484.84/30,729.96 = 7,338.72/x
  3. Step 3: Cross multiply
    20,484.84x = 30,729.96 × 7,338.72
  4. Step 4: Simplify right side
    20,484.84x = 225,518,572.05
  5. Step 5: Solve for x
    x = 225,518,572.05/20,484.84
  6. Step 6: Final answer
    x = 11,009.05

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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.