Home / 20,179.96-30,272.76-7,030.40

Finding the Fourth Proportional to 20,179.96, 30,272.76 and 7,030.40

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Solution

The fourth proportional to 20,179.96, 30,272.76 and 7,030.40 is: 10,546.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.96 : 30,272.76 = 7,030.40 : x
  2. Step 2: Convert to fraction form
    20,179.96/30,272.76 = 7,030.40/x
  3. Step 3: Cross multiply
    20,179.96x = 30,272.76 × 7,030.40
  4. Step 4: Simplify right side
    20,179.96x = 212,829,611.90
  5. Step 5: Solve for x
    x = 212,829,611.90/20,179.96
  6. Step 6: Final answer
    x = 10,546.58

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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.