Home / 20,211.63-30,316.04-7,558.98

Finding the Fourth Proportional to 20,211.63, 30,316.04 and 7,558.98

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Solution

The fourth proportional to 20,211.63, 30,316.04 and 7,558.98 is: 11,337.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.63 : 30,316.04 = 7,558.98 : x
  2. Step 2: Convert to fraction form
    20,211.63/30,316.04 = 7,558.98/x
  3. Step 3: Cross multiply
    20,211.63x = 30,316.04 × 7,558.98
  4. Step 4: Simplify right side
    20,211.63x = 229,158,387.43
  5. Step 5: Solve for x
    x = 229,158,387.43/20,211.63
  6. Step 6: Final answer
    x = 11,337.95

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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.