Home / 19,470.37-29,205.68-6,990.50

Finding the Fourth Proportional to 19,470.37, 29,205.68 and 6,990.50

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Solution

The fourth proportional to 19,470.37, 29,205.68 and 6,990.50 is: 10,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470.37 : 29,205.68 = 6,990.50 : x
  2. Step 2: Convert to fraction form
    19,470.37/29,205.68 = 6,990.50/x
  3. Step 3: Cross multiply
    19,470.37x = 29,205.68 × 6,990.50
  4. Step 4: Simplify right side
    19,470.37x = 204,162,215.32
  5. Step 5: Solve for x
    x = 204,162,215.32/19,470.37
  6. Step 6: Final answer
    x = 10,485.79

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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.