Home / 20,006.10-30,009.69-6,858.18

Finding the Fourth Proportional to 20,006.10, 30,009.69 and 6,858.18

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Solution

The fourth proportional to 20,006.10, 30,009.69 and 6,858.18 is: 10,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.10 : 30,009.69 = 6,858.18 : x
  2. Step 2: Convert to fraction form
    20,006.10/30,009.69 = 6,858.18/x
  3. Step 3: Cross multiply
    20,006.10x = 30,009.69 × 6,858.18
  4. Step 4: Simplify right side
    20,006.10x = 205,811,855.76
  5. Step 5: Solve for x
    x = 205,811,855.76/20,006.10
  6. Step 6: Final answer
    x = 10,287.46

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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.