Home / 28,779.96-39,717.90-16,205.88

Finding the Fourth Proportional to 28,779.96, 39,717.90 and 16,205.88

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Solution

The fourth proportional to 28,779.96, 39,717.90 and 16,205.88 is: 22,364.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.96 : 39,717.90 = 16,205.88 : x
  2. Step 2: Convert to fraction form
    28,779.96/39,717.90 = 16,205.88/x
  3. Step 3: Cross multiply
    28,779.96x = 39,717.90 × 16,205.88
  4. Step 4: Simplify right side
    28,779.96x = 643,663,521.25
  5. Step 5: Solve for x
    x = 643,663,521.25/28,779.96
  6. Step 6: Final answer
    x = 22,364.99

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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.