Home / 20,177.51-30,271.32-7,029.99

Finding the Fourth Proportional to 20,177.51, 30,271.32 and 7,029.99

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Solution

The fourth proportional to 20,177.51, 30,271.32 and 7,029.99 is: 10,546.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.51 : 30,271.32 = 7,029.99 : x
  2. Step 2: Convert to fraction form
    20,177.51/30,271.32 = 7,029.99/x
  3. Step 3: Cross multiply
    20,177.51x = 30,271.32 × 7,029.99
  4. Step 4: Simplify right side
    20,177.51x = 212,807,076.89
  5. Step 5: Solve for x
    x = 212,807,076.89/20,177.51
  6. Step 6: Final answer
    x = 10,546.75

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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.