Home / 55,328.40-82,992.60-20,253.78

Finding the Fourth Proportional to 55,328.40, 82,992.60 and 20,253.78

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Solution

The fourth proportional to 55,328.40, 82,992.60 and 20,253.78 is: 30,380.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,328.40 : 82,992.60 = 20,253.78 : x
  2. Step 2: Convert to fraction form
    55,328.40/82,992.60 = 20,253.78/x
  3. Step 3: Cross multiply
    55,328.40x = 82,992.60 × 20,253.78
  4. Step 4: Simplify right side
    55,328.40x = 1,680,913,862.03
  5. Step 5: Solve for x
    x = 1,680,913,862.03/55,328.40
  6. Step 6: Final answer
    x = 30,380.67

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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.