Home / 20,646.21-30,959.87-6,603.51

Finding the Fourth Proportional to 20,646.21, 30,959.87 and 6,603.51

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Solution

The fourth proportional to 20,646.21, 30,959.87 and 6,603.51 is: 9,902.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.21 : 30,959.87 = 6,603.51 : x
  2. Step 2: Convert to fraction form
    20,646.21/30,959.87 = 6,603.51/x
  3. Step 3: Cross multiply
    20,646.21x = 30,959.87 × 6,603.51
  4. Step 4: Simplify right side
    20,646.21x = 204,443,778.13
  5. Step 5: Solve for x
    x = 204,443,778.13/20,646.21
  6. Step 6: Final answer
    x = 9,902.24

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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.