Home / 19,305.06-28,950.30-8,216.97

Finding the Fourth Proportional to 19,305.06, 28,950.30 and 8,216.97

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Solution

The fourth proportional to 19,305.06, 28,950.30 and 8,216.97 is: 12,322.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.06 : 28,950.30 = 8,216.97 : x
  2. Step 2: Convert to fraction form
    19,305.06/28,950.30 = 8,216.97/x
  3. Step 3: Cross multiply
    19,305.06x = 28,950.30 × 8,216.97
  4. Step 4: Simplify right side
    19,305.06x = 237,883,746.59
  5. Step 5: Solve for x
    x = 237,883,746.59/19,305.06
  6. Step 6: Final answer
    x = 12,322.35

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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.