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Finding the Fourth Proportional to 17,558.60, 26,337.90 and 16,878.20

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Solution

The fourth proportional to 17,558.60, 26,337.90 and 16,878.20 is: 25,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,558.60 : 26,337.90 = 16,878.20 : x
  2. Step 2: Convert to fraction form
    17,558.60/26,337.90 = 16,878.20/x
  3. Step 3: Cross multiply
    17,558.60x = 26,337.90 × 16,878.20
  4. Step 4: Simplify right side
    17,558.60x = 444,536,343.78
  5. Step 5: Solve for x
    x = 444,536,343.78/17,558.60
  6. Step 6: Final answer
    x = 25,317.30

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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.