Home / 30,664.92-45,979.98-10,665.18

Finding the Fourth Proportional to 30,664.92, 45,979.98 and 10,665.18

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Solution

The fourth proportional to 30,664.92, 45,979.98 and 10,665.18 is: 15,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,664.92 : 45,979.98 = 10,665.18 : x
  2. Step 2: Convert to fraction form
    30,664.92/45,979.98 = 10,665.18/x
  3. Step 3: Cross multiply
    30,664.92x = 45,979.98 × 10,665.18
  4. Step 4: Simplify right side
    30,664.92x = 490,384,763.10
  5. Step 5: Solve for x
    x = 490,384,763.10/30,664.92
  6. Step 6: Final answer
    x = 15,991.72

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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.