Home / 28,788.92-39,729.36-16,042.96

Finding the Fourth Proportional to 28,788.92, 39,729.36 and 16,042.96

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Solution

The fourth proportional to 28,788.92, 39,729.36 and 16,042.96 is: 22,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.92 : 39,729.36 = 16,042.96 : x
  2. Step 2: Convert to fraction form
    28,788.92/39,729.36 = 16,042.96/x
  3. Step 3: Cross multiply
    28,788.92x = 39,729.36 × 16,042.96
  4. Step 4: Simplify right side
    28,788.92x = 637,376,533.31
  5. Step 5: Solve for x
    x = 637,376,533.31/28,788.92
  6. Step 6: Final answer
    x = 22,139.65

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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.