Home / 28,151.45-38,830.68-18,063.91

Finding the Fourth Proportional to 28,151.45, 38,830.68 and 18,063.91

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Solution

The fourth proportional to 28,151.45, 38,830.68 and 18,063.91 is: 24,916.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,151.45 : 38,830.68 = 18,063.91 : x
  2. Step 2: Convert to fraction form
    28,151.45/38,830.68 = 18,063.91/x
  3. Step 3: Cross multiply
    28,151.45x = 38,830.68 × 18,063.91
  4. Step 4: Simplify right side
    28,151.45x = 701,433,811.68
  5. Step 5: Solve for x
    x = 701,433,811.68/28,151.45
  6. Step 6: Final answer
    x = 24,916.44

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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.