Home / 20,418.51-30,621.28-6,564.27

Finding the Fourth Proportional to 20,418.51, 30,621.28 and 6,564.27

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Solution

The fourth proportional to 20,418.51, 30,621.28 and 6,564.27 is: 9,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,418.51 : 30,621.28 = 6,564.27 : x
  2. Step 2: Convert to fraction form
    20,418.51/30,621.28 = 6,564.27/x
  3. Step 3: Cross multiply
    20,418.51x = 30,621.28 × 6,564.27
  4. Step 4: Simplify right side
    20,418.51x = 201,006,163.74
  5. Step 5: Solve for x
    x = 201,006,163.74/20,418.51
  6. Step 6: Final answer
    x = 9,844.31

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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.