Home / 20,001.10-30,005.70-6,854.80

Finding the Fourth Proportional to 20,001.10, 30,005.70 and 6,854.80

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Solution

The fourth proportional to 20,001.10, 30,005.70 and 6,854.80 is: 10,283.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.10 : 30,005.70 = 6,854.80 : x
  2. Step 2: Convert to fraction form
    20,001.10/30,005.70 = 6,854.80/x
  3. Step 3: Cross multiply
    20,001.10x = 30,005.70 × 6,854.80
  4. Step 4: Simplify right side
    20,001.10x = 205,683,072.36
  5. Step 5: Solve for x
    x = 205,683,072.36/20,001.10
  6. Step 6: Final answer
    x = 10,283.59

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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.