Home / 20,673.84-31,012.83-6,630.36

Finding the Fourth Proportional to 20,673.84, 31,012.83 and 6,630.36

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Solution

The fourth proportional to 20,673.84, 31,012.83 and 6,630.36 is: 9,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.84 : 31,012.83 = 6,630.36 : x
  2. Step 2: Convert to fraction form
    20,673.84/31,012.83 = 6,630.36/x
  3. Step 3: Cross multiply
    20,673.84x = 31,012.83 × 6,630.36
  4. Step 4: Simplify right side
    20,673.84x = 205,626,227.52
  5. Step 5: Solve for x
    x = 205,626,227.52/20,673.84
  6. Step 6: Final answer
    x = 9,946.20

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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.