Home / 30,807.46-42,514.22-16,660.31

Finding the Fourth Proportional to 30,807.46, 42,514.22 and 16,660.31

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Solution

The fourth proportional to 30,807.46, 42,514.22 and 16,660.31 is: 22,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,807.46 : 42,514.22 = 16,660.31 : x
  2. Step 2: Convert to fraction form
    30,807.46/42,514.22 = 16,660.31/x
  3. Step 3: Cross multiply
    30,807.46x = 42,514.22 × 16,660.31
  4. Step 4: Simplify right side
    30,807.46x = 708,299,939.54
  5. Step 5: Solve for x
    x = 708,299,939.54/30,807.46
  6. Step 6: Final answer
    x = 22,991.18

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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.