Home / 30,908.32-42,653.04-16,760.88

Finding the Fourth Proportional to 30,908.32, 42,653.04 and 16,760.88

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Solution

The fourth proportional to 30,908.32, 42,653.04 and 16,760.88 is: 23,129.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,908.32 : 42,653.04 = 16,760.88 : x
  2. Step 2: Convert to fraction form
    30,908.32/42,653.04 = 16,760.88/x
  3. Step 3: Cross multiply
    30,908.32x = 42,653.04 × 16,760.88
  4. Step 4: Simplify right side
    30,908.32x = 714,902,485.08
  5. Step 5: Solve for x
    x = 714,902,485.08/30,908.32
  6. Step 6: Final answer
    x = 23,129.77

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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.