Home / 28,887.92-39,868-17,554.80

Finding the Fourth Proportional to 28,887.92, 39,868 and 17,554.80

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Solution

The fourth proportional to 28,887.92, 39,868 and 17,554.80 is: 24,227.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.92 : 39,868 = 17,554.80 : x
  2. Step 2: Convert to fraction form
    28,887.92/39,868 = 17,554.80/x
  3. Step 3: Cross multiply
    28,887.92x = 39,868 × 17,554.80
  4. Step 4: Simplify right side
    28,887.92x = 699,874,766.40
  5. Step 5: Solve for x
    x = 699,874,766.40/28,887.92
  6. Step 6: Final answer
    x = 24,227.25

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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.