Home / 26,731.81-36,891.21-15,403.08

Finding the Fourth Proportional to 26,731.81, 36,891.21 and 15,403.08

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Solution

The fourth proportional to 26,731.81, 36,891.21 and 15,403.08 is: 21,257.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,731.81 : 36,891.21 = 15,403.08 : x
  2. Step 2: Convert to fraction form
    26,731.81/36,891.21 = 15,403.08/x
  3. Step 3: Cross multiply
    26,731.81x = 36,891.21 × 15,403.08
  4. Step 4: Simplify right side
    26,731.81x = 568,238,258.93
  5. Step 5: Solve for x
    x = 568,238,258.93/26,731.81
  6. Step 6: Final answer
    x = 21,257.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.