Home / 28,276.68-39,018.87-16,343.85

Finding the Fourth Proportional to 28,276.68, 39,018.87 and 16,343.85

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Solution

The fourth proportional to 28,276.68, 39,018.87 and 16,343.85 is: 22,552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276.68 : 39,018.87 = 16,343.85 : x
  2. Step 2: Convert to fraction form
    28,276.68/39,018.87 = 16,343.85/x
  3. Step 3: Cross multiply
    28,276.68x = 39,018.87 × 16,343.85
  4. Step 4: Simplify right side
    28,276.68x = 637,718,558.45
  5. Step 5: Solve for x
    x = 637,718,558.45/28,276.68
  6. Step 6: Final answer
    x = 22,552.81

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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.