Home / 19,620.66-29,423.70-6,469.50

Finding the Fourth Proportional to 19,620.66, 29,423.70 and 6,469.50

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Solution

The fourth proportional to 19,620.66, 29,423.70 and 6,469.50 is: 9,701.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.66 : 29,423.70 = 6,469.50 : x
  2. Step 2: Convert to fraction form
    19,620.66/29,423.70 = 6,469.50/x
  3. Step 3: Cross multiply
    19,620.66x = 29,423.70 × 6,469.50
  4. Step 4: Simplify right side
    19,620.66x = 190,356,627.15
  5. Step 5: Solve for x
    x = 190,356,627.15/19,620.66
  6. Step 6: Final answer
    x = 9,701.85

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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.