Home / 28,156.34-38,849.20-16,829.50

Finding the Fourth Proportional to 28,156.34, 38,849.20 and 16,829.50

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Solution

The fourth proportional to 28,156.34, 38,849.20 and 16,829.50 is: 23,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.34 : 38,849.20 = 16,829.50 : x
  2. Step 2: Convert to fraction form
    28,156.34/38,849.20 = 16,829.50/x
  3. Step 3: Cross multiply
    28,156.34x = 38,849.20 × 16,829.50
  4. Step 4: Simplify right side
    28,156.34x = 653,812,611.40
  5. Step 5: Solve for x
    x = 653,812,611.40/28,156.34
  6. Step 6: Final answer
    x = 23,220.80

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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.