Home / 20,185.05-30,277.74-7,037.40

Finding the Fourth Proportional to 20,185.05, 30,277.74 and 7,037.40

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Solution

The fourth proportional to 20,185.05, 30,277.74 and 7,037.40 is: 10,556.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.05 : 30,277.74 = 7,037.40 : x
  2. Step 2: Convert to fraction form
    20,185.05/30,277.74 = 7,037.40/x
  3. Step 3: Cross multiply
    20,185.05x = 30,277.74 × 7,037.40
  4. Step 4: Simplify right side
    20,185.05x = 213,076,567.48
  5. Step 5: Solve for x
    x = 213,076,567.48/20,185.05
  6. Step 6: Final answer
    x = 10,556.16

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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.