Home / 26,718.36-36,871.50-15,540.36

Finding the Fourth Proportional to 26,718.36, 36,871.50 and 15,540.36

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Solution

The fourth proportional to 26,718.36, 36,871.50 and 15,540.36 is: 21,445.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,718.36 : 36,871.50 = 15,540.36 : x
  2. Step 2: Convert to fraction form
    26,718.36/36,871.50 = 15,540.36/x
  3. Step 3: Cross multiply
    26,718.36x = 36,871.50 × 15,540.36
  4. Step 4: Simplify right side
    26,718.36x = 572,996,383.74
  5. Step 5: Solve for x
    x = 572,996,383.74/26,718.36
  6. Step 6: Final answer
    x = 21,445.79

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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.