Home / 28,752.09-39,677.85-16,813.05

Finding the Fourth Proportional to 28,752.09, 39,677.85 and 16,813.05

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Solution

The fourth proportional to 28,752.09, 39,677.85 and 16,813.05 is: 23,201.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752.09 : 39,677.85 = 16,813.05 : x
  2. Step 2: Convert to fraction form
    28,752.09/39,677.85 = 16,813.05/x
  3. Step 3: Cross multiply
    28,752.09x = 39,677.85 × 16,813.05
  4. Step 4: Simplify right side
    28,752.09x = 667,105,675.94
  5. Step 5: Solve for x
    x = 667,105,675.94/28,752.09
  6. Step 6: Final answer
    x = 23,201.99

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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.