Home / 28,775.25-39,709.85-16,834.23

Finding the Fourth Proportional to 28,775.25, 39,709.85 and 16,834.23

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Solution

The fourth proportional to 28,775.25, 39,709.85 and 16,834.23 is: 23,231.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.25 : 39,709.85 = 16,834.23 : x
  2. Step 2: Convert to fraction form
    28,775.25/39,709.85 = 16,834.23/x
  3. Step 3: Cross multiply
    28,775.25x = 39,709.85 × 16,834.23
  4. Step 4: Simplify right side
    28,775.25x = 668,484,663.99
  5. Step 5: Solve for x
    x = 668,484,663.99/28,775.25
  6. Step 6: Final answer
    x = 23,231.24

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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.