Home / 26,780.28-40,195.34-13,642.49

Finding the Fourth Proportional to 26,780.28, 40,195.34 and 13,642.49

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Solution

The fourth proportional to 26,780.28, 40,195.34 and 13,642.49 is: 20,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,780.28 : 40,195.34 = 13,642.49 : x
  2. Step 2: Convert to fraction form
    26,780.28/40,195.34 = 13,642.49/x
  3. Step 3: Cross multiply
    26,780.28x = 40,195.34 × 13,642.49
  4. Step 4: Simplify right side
    26,780.28x = 548,364,254.81
  5. Step 5: Solve for x
    x = 548,364,254.81/26,780.28
  6. Step 6: Final answer
    x = 20,476.42

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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.