Home / 30,809.26-42,516.78-16,662.10

Finding the Fourth Proportional to 30,809.26, 42,516.78 and 16,662.10

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Solution

The fourth proportional to 30,809.26, 42,516.78 and 16,662.10 is: 22,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,809.26 : 42,516.78 = 16,662.10 : x
  2. Step 2: Convert to fraction form
    30,809.26/42,516.78 = 16,662.10/x
  3. Step 3: Cross multiply
    30,809.26x = 42,516.78 × 16,662.10
  4. Step 4: Simplify right side
    30,809.26x = 708,418,840.04
  5. Step 5: Solve for x
    x = 708,418,840.04/30,809.26
  6. Step 6: Final answer
    x = 22,993.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.