Home / 28,809.52-39,759.12-16,234.28

Finding the Fourth Proportional to 28,809.52, 39,759.12 and 16,234.28

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Solution

The fourth proportional to 28,809.52, 39,759.12 and 16,234.28 is: 22,404.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.52 : 39,759.12 = 16,234.28 : x
  2. Step 2: Convert to fraction form
    28,809.52/39,759.12 = 16,234.28/x
  3. Step 3: Cross multiply
    28,809.52x = 39,759.12 × 16,234.28
  4. Step 4: Simplify right side
    28,809.52x = 645,460,686.63
  5. Step 5: Solve for x
    x = 645,460,686.63/28,809.52
  6. Step 6: Final answer
    x = 22,404.42

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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.