Home / 28,375.84-39,156.78-16,437.05

Finding the Fourth Proportional to 28,375.84, 39,156.78 and 16,437.05

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Solution

The fourth proportional to 28,375.84, 39,156.78 and 16,437.05 is: 22,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375.84 : 39,156.78 = 16,437.05 : x
  2. Step 2: Convert to fraction form
    28,375.84/39,156.78 = 16,437.05/x
  3. Step 3: Cross multiply
    28,375.84x = 39,156.78 × 16,437.05
  4. Step 4: Simplify right side
    28,375.84x = 643,621,950.70
  5. Step 5: Solve for x
    x = 643,621,950.70/28,375.84
  6. Step 6: Final answer
    x = 22,682.04

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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.