Home / 30,209.27-41,689.55-16,779.88

Finding the Fourth Proportional to 30,209.27, 41,689.55 and 16,779.88

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Solution

The fourth proportional to 30,209.27, 41,689.55 and 16,779.88 is: 23,156.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.27 : 41,689.55 = 16,779.88 : x
  2. Step 2: Convert to fraction form
    30,209.27/41,689.55 = 16,779.88/x
  3. Step 3: Cross multiply
    30,209.27x = 41,689.55 × 16,779.88
  4. Step 4: Simplify right side
    30,209.27x = 699,545,646.25
  5. Step 5: Solve for x
    x = 699,545,646.25/30,209.27
  6. Step 6: Final answer
    x = 23,156.66

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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.