Home / 28,156.92-38,852.70-16,824

Finding the Fourth Proportional to 28,156.92, 38,852.70 and 16,824

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Solution

The fourth proportional to 28,156.92, 38,852.70 and 16,824 is: 23,214.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.92 : 38,852.70 = 16,824 : x
  2. Step 2: Convert to fraction form
    28,156.92/38,852.70 = 16,824/x
  3. Step 3: Cross multiply
    28,156.92x = 38,852.70 × 16,824
  4. Step 4: Simplify right side
    28,156.92x = 653,657,824.80
  5. Step 5: Solve for x
    x = 653,657,824.80/28,156.92
  6. Step 6: Final answer
    x = 23,214.82

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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.