Home / 30,813.16-42,521.94-16,665.96

Finding the Fourth Proportional to 30,813.16, 42,521.94 and 16,665.96

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Solution

The fourth proportional to 30,813.16, 42,521.94 and 16,665.96 is: 22,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813.16 : 42,521.94 = 16,665.96 : x
  2. Step 2: Convert to fraction form
    30,813.16/42,521.94 = 16,665.96/x
  3. Step 3: Cross multiply
    30,813.16x = 42,521.94 × 16,665.96
  4. Step 4: Simplify right side
    30,813.16x = 708,668,951.16
  5. Step 5: Solve for x
    x = 708,668,951.16/30,813.16
  6. Step 6: Final answer
    x = 22,998.91

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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.