Home / 28,135.48-38,834.64-17,518.84

Finding the Fourth Proportional to 28,135.48, 38,834.64 and 17,518.84

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Solution

The fourth proportional to 28,135.48, 38,834.64 and 17,518.84 is: 24,180.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.48 : 38,834.64 = 17,518.84 : x
  2. Step 2: Convert to fraction form
    28,135.48/38,834.64 = 17,518.84/x
  3. Step 3: Cross multiply
    28,135.48x = 38,834.64 × 17,518.84
  4. Step 4: Simplify right side
    28,135.48x = 680,337,844.62
  5. Step 5: Solve for x
    x = 680,337,844.62/28,135.48
  6. Step 6: Final answer
    x = 24,180.78

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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.