Home / 28,779.92-39,714.88-16,027.28

Finding the Fourth Proportional to 28,779.92, 39,714.88 and 16,027.28

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Solution

The fourth proportional to 28,779.92, 39,714.88 and 16,027.28 is: 22,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.92 : 39,714.88 = 16,027.28 : x
  2. Step 2: Convert to fraction form
    28,779.92/39,714.88 = 16,027.28/x
  3. Step 3: Cross multiply
    28,779.92x = 39,714.88 × 16,027.28
  4. Step 4: Simplify right side
    28,779.92x = 636,521,501.93
  5. Step 5: Solve for x
    x = 636,521,501.93/28,779.92
  6. Step 6: Final answer
    x = 22,116.86

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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.