Home / 20,615.34-30,921.46-6,574.80

Finding the Fourth Proportional to 20,615.34, 30,921.46 and 6,574.80

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Solution

The fourth proportional to 20,615.34, 30,921.46 and 6,574.80 is: 9,861.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615.34 : 30,921.46 = 6,574.80 : x
  2. Step 2: Convert to fraction form
    20,615.34/30,921.46 = 6,574.80/x
  3. Step 3: Cross multiply
    20,615.34x = 30,921.46 × 6,574.80
  4. Step 4: Simplify right side
    20,615.34x = 203,302,551.71
  5. Step 5: Solve for x
    x = 203,302,551.71/20,615.34
  6. Step 6: Final answer
    x = 9,861.71

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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.