Home / 28,679.59-39,578.30-16,104.07

Finding the Fourth Proportional to 28,679.59, 39,578.30 and 16,104.07

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Solution

The fourth proportional to 28,679.59, 39,578.30 and 16,104.07 is: 22,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679.59 : 39,578.30 = 16,104.07 : x
  2. Step 2: Convert to fraction form
    28,679.59/39,578.30 = 16,104.07/x
  3. Step 3: Cross multiply
    28,679.59x = 39,578.30 × 16,104.07
  4. Step 4: Simplify right side
    28,679.59x = 637,371,713.68
  5. Step 5: Solve for x
    x = 637,371,713.68/28,679.59
  6. Step 6: Final answer
    x = 22,223.88

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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.