Home / 26,909.89-40,338.65-12,866.27

Finding the Fourth Proportional to 26,909.89, 40,338.65 and 12,866.27

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Solution

The fourth proportional to 26,909.89, 40,338.65 and 12,866.27 is: 19,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,909.89 : 40,338.65 = 12,866.27 : x
  2. Step 2: Convert to fraction form
    26,909.89/40,338.65 = 12,866.27/x
  3. Step 3: Cross multiply
    26,909.89x = 40,338.65 × 12,866.27
  4. Step 4: Simplify right side
    26,909.89x = 519,007,792.81
  5. Step 5: Solve for x
    x = 519,007,792.81/26,909.89
  6. Step 6: Final answer
    x = 19,286.88

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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.