Home / 30,829.99-42,545.50-16,682.84

Finding the Fourth Proportional to 30,829.99, 42,545.50 and 16,682.84

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Solution

The fourth proportional to 30,829.99, 42,545.50 and 16,682.84 is: 23,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,829.99 : 42,545.50 = 16,682.84 : x
  2. Step 2: Convert to fraction form
    30,829.99/42,545.50 = 16,682.84/x
  3. Step 3: Cross multiply
    30,829.99x = 42,545.50 × 16,682.84
  4. Step 4: Simplify right side
    30,829.99x = 709,779,648.51
  5. Step 5: Solve for x
    x = 709,779,648.51/30,829.99
  6. Step 6: Final answer
    x = 23,022.38

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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.