Home / 20,205.69-30,307.82-6,165.15

Finding the Fourth Proportional to 20,205.69, 30,307.82 and 6,165.15

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Solution

The fourth proportional to 20,205.69, 30,307.82 and 6,165.15 is: 9,247.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.69 : 30,307.82 = 6,165.15 : x
  2. Step 2: Convert to fraction form
    20,205.69/30,307.82 = 6,165.15/x
  3. Step 3: Cross multiply
    20,205.69x = 30,307.82 × 6,165.15
  4. Step 4: Simplify right side
    20,205.69x = 186,852,256.47
  5. Step 5: Solve for x
    x = 186,852,256.47/20,205.69
  6. Step 6: Final answer
    x = 9,247.51

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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.