Home / 16,905.60-25,358.40-16,516.80

Finding the Fourth Proportional to 16,905.60, 25,358.40 and 16,516.80

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Solution

The fourth proportional to 16,905.60, 25,358.40 and 16,516.80 is: 24,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.60 : 25,358.40 = 16,516.80 : x
  2. Step 2: Convert to fraction form
    16,905.60/25,358.40 = 16,516.80/x
  3. Step 3: Cross multiply
    16,905.60x = 25,358.40 × 16,516.80
  4. Step 4: Simplify right side
    16,905.60x = 418,839,621.12
  5. Step 5: Solve for x
    x = 418,839,621.12/16,905.60
  6. Step 6: Final answer
    x = 24,775.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.