Home / 20,677.03-31,000.25-6,628.91

Finding the Fourth Proportional to 20,677.03, 31,000.25 and 6,628.91

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Solution

The fourth proportional to 20,677.03, 31,000.25 and 6,628.91 is: 9,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.03 : 31,000.25 = 6,628.91 : x
  2. Step 2: Convert to fraction form
    20,677.03/31,000.25 = 6,628.91/x
  3. Step 3: Cross multiply
    20,677.03x = 31,000.25 × 6,628.91
  4. Step 4: Simplify right side
    20,677.03x = 205,497,728.80
  5. Step 5: Solve for x
    x = 205,497,728.80/20,677.03
  6. Step 6: Final answer
    x = 9,938.46

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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.