Home / 16,160.40-22,363.56-15,771.60

Finding the Fourth Proportional to 16,160.40, 22,363.56 and 15,771.60

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Solution

The fourth proportional to 16,160.40, 22,363.56 and 15,771.60 is: 21,825.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,160.40 : 22,363.56 = 15,771.60 : x
  2. Step 2: Convert to fraction form
    16,160.40/22,363.56 = 15,771.60/x
  3. Step 3: Cross multiply
    16,160.40x = 22,363.56 × 15,771.60
  4. Step 4: Simplify right side
    16,160.40x = 352,709,122.90
  5. Step 5: Solve for x
    x = 352,709,122.90/16,160.40
  6. Step 6: Final answer
    x = 21,825.52

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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.