Home / 25,479.72-38,169.86-16,687.98

Finding the Fourth Proportional to 25,479.72, 38,169.86 and 16,687.98

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Solution

The fourth proportional to 25,479.72, 38,169.86 and 16,687.98 is: 24,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,479.72 : 38,169.86 = 16,687.98 : x
  2. Step 2: Convert to fraction form
    25,479.72/38,169.86 = 16,687.98/x
  3. Step 3: Cross multiply
    25,479.72x = 38,169.86 × 16,687.98
  4. Step 4: Simplify right side
    25,479.72x = 636,977,776.84
  5. Step 5: Solve for x
    x = 636,977,776.84/25,479.72
  6. Step 6: Final answer
    x = 24,999.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.