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Finding the Fourth Proportional to 16,648.80, 22,892.40 and 15,957.60

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Solution

The fourth proportional to 16,648.80, 22,892.40 and 15,957.60 is: 21,941.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,648.80 : 22,892.40 = 15,957.60 : x
  2. Step 2: Convert to fraction form
    16,648.80/22,892.40 = 15,957.60/x
  3. Step 3: Cross multiply
    16,648.80x = 22,892.40 × 15,957.60
  4. Step 4: Simplify right side
    16,648.80x = 365,307,762.24
  5. Step 5: Solve for x
    x = 365,307,762.24/16,648.80
  6. Step 6: Final answer
    x = 21,941.99

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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.