Home / 28,813.73-39,761.94-16,876.81

Finding the Fourth Proportional to 28,813.73, 39,761.94 and 16,876.81

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Solution

The fourth proportional to 28,813.73, 39,761.94 and 16,876.81 is: 23,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,813.73 : 39,761.94 = 16,876.81 : x
  2. Step 2: Convert to fraction form
    28,813.73/39,761.94 = 16,876.81/x
  3. Step 3: Cross multiply
    28,813.73x = 39,761.94 × 16,876.81
  4. Step 4: Simplify right side
    28,813.73x = 671,054,501.01
  5. Step 5: Solve for x
    x = 671,054,501.01/28,813.73
  6. Step 6: Final answer
    x = 23,289.40

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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.