Home / 20,638.74-30,957.80-5,056.37

Finding the Fourth Proportional to 20,638.74, 30,957.80 and 5,056.37

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Solution

The fourth proportional to 20,638.74, 30,957.80 and 5,056.37 is: 7,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,638.74 : 30,957.80 = 5,056.37 : x
  2. Step 2: Convert to fraction form
    20,638.74/30,957.80 = 5,056.37/x
  3. Step 3: Cross multiply
    20,638.74x = 30,957.80 × 5,056.37
  4. Step 4: Simplify right side
    20,638.74x = 156,534,091.19
  5. Step 5: Solve for x
    x = 156,534,091.19/20,638.74
  6. Step 6: Final answer
    x = 7,584.48

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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.