Home / 19,983.70-29,979.15-8,298.10

Finding the Fourth Proportional to 19,983.70, 29,979.15 and 8,298.10

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Solution

The fourth proportional to 19,983.70, 29,979.15 and 8,298.10 is: 12,448.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.70 : 29,979.15 = 8,298.10 : x
  2. Step 2: Convert to fraction form
    19,983.70/29,979.15 = 8,298.10/x
  3. Step 3: Cross multiply
    19,983.70x = 29,979.15 × 8,298.10
  4. Step 4: Simplify right side
    19,983.70x = 248,769,984.62
  5. Step 5: Solve for x
    x = 248,769,984.62/19,983.70
  6. Step 6: Final answer
    x = 12,448.64

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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.