Home / 19,995.63-29,990.97-12,576.84

Finding the Fourth Proportional to 19,995.63, 29,990.97 and 12,576.84

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Solution

The fourth proportional to 19,995.63, 29,990.97 and 12,576.84 is: 18,863.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.63 : 29,990.97 = 12,576.84 : x
  2. Step 2: Convert to fraction form
    19,995.63/29,990.97 = 12,576.84/x
  3. Step 3: Cross multiply
    19,995.63x = 29,990.97 × 12,576.84
  4. Step 4: Simplify right side
    19,995.63x = 377,191,631.13
  5. Step 5: Solve for x
    x = 377,191,631.13/19,995.63
  6. Step 6: Final answer
    x = 18,863.70

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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.