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Finding the Fourth Proportional to 26,788.20, 40,124.70 and 16,420.20

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Solution

The fourth proportional to 26,788.20, 40,124.70 and 16,420.20 is: 24,594.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,788.20 : 40,124.70 = 16,420.20 : x
  2. Step 2: Convert to fraction form
    26,788.20/40,124.70 = 16,420.20/x
  3. Step 3: Cross multiply
    26,788.20x = 40,124.70 × 16,420.20
  4. Step 4: Simplify right side
    26,788.20x = 658,855,598.94
  5. Step 5: Solve for x
    x = 658,855,598.94/26,788.20
  6. Step 6: Final answer
    x = 24,594.99

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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.