Home / 28,108.45-38,811.99-17,368.91

Finding the Fourth Proportional to 28,108.45, 38,811.99 and 17,368.91

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Solution

The fourth proportional to 28,108.45, 38,811.99 and 17,368.91 is: 23,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.45 : 38,811.99 = 17,368.91 : x
  2. Step 2: Convert to fraction form
    28,108.45/38,811.99 = 17,368.91/x
  3. Step 3: Cross multiply
    28,108.45x = 38,811.99 × 17,368.91
  4. Step 4: Simplify right side
    28,108.45x = 674,121,977.85
  5. Step 5: Solve for x
    x = 674,121,977.85/28,108.45
  6. Step 6: Final answer
    x = 23,982.89

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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.