Home / 20,118.27-30,177.44-6,970.65

Finding the Fourth Proportional to 20,118.27, 30,177.44 and 6,970.65

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Solution

The fourth proportional to 20,118.27, 30,177.44 and 6,970.65 is: 10,455.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.27 : 30,177.44 = 6,970.65 : x
  2. Step 2: Convert to fraction form
    20,118.27/30,177.44 = 6,970.65/x
  3. Step 3: Cross multiply
    20,118.27x = 30,177.44 × 6,970.65
  4. Step 4: Simplify right side
    20,118.27x = 210,356,502.73
  5. Step 5: Solve for x
    x = 210,356,502.73/20,118.27
  6. Step 6: Final answer
    x = 10,455.99

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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.