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Finding the Fourth Proportional to 26,746.80, 40,120.20 and 13,624.80

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Solution

The fourth proportional to 26,746.80, 40,120.20 and 13,624.80 is: 20,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,746.80 : 40,120.20 = 13,624.80 : x
  2. Step 2: Convert to fraction form
    26,746.80/40,120.20 = 13,624.80/x
  3. Step 3: Cross multiply
    26,746.80x = 40,120.20 × 13,624.80
  4. Step 4: Simplify right side
    26,746.80x = 546,629,700.96
  5. Step 5: Solve for x
    x = 546,629,700.96/26,746.80
  6. Step 6: Final answer
    x = 20,437.20

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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.