Home / 28,687.95-43,031.70-16,992.75

Finding the Fourth Proportional to 28,687.95, 43,031.70 and 16,992.75

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Solution

The fourth proportional to 28,687.95, 43,031.70 and 16,992.75 is: 25,488.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.95 : 43,031.70 = 16,992.75 : x
  2. Step 2: Convert to fraction form
    28,687.95/43,031.70 = 16,992.75/x
  3. Step 3: Cross multiply
    28,687.95x = 43,031.70 × 16,992.75
  4. Step 4: Simplify right side
    28,687.95x = 731,226,920.18
  5. Step 5: Solve for x
    x = 731,226,920.18/28,687.95
  6. Step 6: Final answer
    x = 25,488.99

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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.