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Finding the Fourth Proportional to 26,377.60, 39,489.60 and 25,609.60

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Solution

The fourth proportional to 26,377.60, 39,489.60 and 25,609.60 is: 38,339.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,377.60 : 39,489.60 = 25,609.60 : x
  2. Step 2: Convert to fraction form
    26,377.60/39,489.60 = 25,609.60/x
  3. Step 3: Cross multiply
    26,377.60x = 39,489.60 × 25,609.60
  4. Step 4: Simplify right side
    26,377.60x = 1,011,312,860.16
  5. Step 5: Solve for x
    x = 1,011,312,860.16/26,377.60
  6. Step 6: Final answer
    x = 38,339.84

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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.