Home / 20,666.02-31,000.85-6,626.69

Finding the Fourth Proportional to 20,666.02, 31,000.85 and 6,626.69

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Solution

The fourth proportional to 20,666.02, 31,000.85 and 6,626.69 is: 9,940.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,666.02 : 31,000.85 = 6,626.69 : x
  2. Step 2: Convert to fraction form
    20,666.02/31,000.85 = 6,626.69/x
  3. Step 3: Cross multiply
    20,666.02x = 31,000.85 × 6,626.69
  4. Step 4: Simplify right side
    20,666.02x = 205,433,022.69
  5. Step 5: Solve for x
    x = 205,433,022.69/20,666.02
  6. Step 6: Final answer
    x = 9,940.62

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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.