Home / 28,748.47-39,671.91-16,170.79

Finding the Fourth Proportional to 28,748.47, 39,671.91 and 16,170.79

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Solution

The fourth proportional to 28,748.47, 39,671.91 and 16,170.79 is: 22,315.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.47 : 39,671.91 = 16,170.79 : x
  2. Step 2: Convert to fraction form
    28,748.47/39,671.91 = 16,170.79/x
  3. Step 3: Cross multiply
    28,748.47x = 39,671.91 × 16,170.79
  4. Step 4: Simplify right side
    28,748.47x = 641,525,846.30
  5. Step 5: Solve for x
    x = 641,525,846.30/28,748.47
  6. Step 6: Final answer
    x = 22,315.13

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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.