Home / 30,829.81-42,545.19-16,682.65

Finding the Fourth Proportional to 30,829.81, 42,545.19 and 16,682.65

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Solution

The fourth proportional to 30,829.81, 42,545.19 and 16,682.65 is: 23,022.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,829.81 : 42,545.19 = 16,682.65 : x
  2. Step 2: Convert to fraction form
    30,829.81/42,545.19 = 16,682.65/x
  3. Step 3: Cross multiply
    30,829.81x = 42,545.19 × 16,682.65
  4. Step 4: Simplify right side
    30,829.81x = 709,766,513.95
  5. Step 5: Solve for x
    x = 709,766,513.95/30,829.81
  6. Step 6: Final answer
    x = 23,022.09

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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.