Home / 20,409.60-30,615.12-6,558.24

Finding the Fourth Proportional to 20,409.60, 30,615.12 and 6,558.24

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Solution

The fourth proportional to 20,409.60, 30,615.12 and 6,558.24 is: 9,837.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409.60 : 30,615.12 = 6,558.24 : x
  2. Step 2: Convert to fraction form
    20,409.60/30,615.12 = 6,558.24/x
  3. Step 3: Cross multiply
    20,409.60x = 30,615.12 × 6,558.24
  4. Step 4: Simplify right side
    20,409.60x = 200,781,304.59
  5. Step 5: Solve for x
    x = 200,781,304.59/20,409.60
  6. Step 6: Final answer
    x = 9,837.59

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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.