Home / 30,807.24-42,513.96-16,660.08

Finding the Fourth Proportional to 30,807.24, 42,513.96 and 16,660.08

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Solution

The fourth proportional to 30,807.24, 42,513.96 and 16,660.08 is: 22,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,807.24 : 42,513.96 = 16,660.08 : x
  2. Step 2: Convert to fraction form
    30,807.24/42,513.96 = 16,660.08/x
  3. Step 3: Cross multiply
    30,807.24x = 42,513.96 × 16,660.08
  4. Step 4: Simplify right side
    30,807.24x = 708,285,974.72
  5. Step 5: Solve for x
    x = 708,285,974.72/30,807.24
  6. Step 6: Final answer
    x = 22,990.89

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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.