Home / 20,615.04-30,921.12-6,574.80

Finding the Fourth Proportional to 20,615.04, 30,921.12 and 6,574.80

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Solution

The fourth proportional to 20,615.04, 30,921.12 and 6,574.80 is: 9,861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615.04 : 30,921.12 = 6,574.80 : x
  2. Step 2: Convert to fraction form
    20,615.04/30,921.12 = 6,574.80/x
  3. Step 3: Cross multiply
    20,615.04x = 30,921.12 × 6,574.80
  4. Step 4: Simplify right side
    20,615.04x = 203,300,179.78
  5. Step 5: Solve for x
    x = 203,300,179.78/20,615.04
  6. Step 6: Final answer
    x = 9,861.74

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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.