Home / 26,187.20-36,129-15,576.56

Finding the Fourth Proportional to 26,187.20, 36,129 and 15,576.56

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Solution

The fourth proportional to 26,187.20, 36,129 and 15,576.56 is: 21,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,187.20 : 36,129 = 15,576.56 : x
  2. Step 2: Convert to fraction form
    26,187.20/36,129 = 15,576.56/x
  3. Step 3: Cross multiply
    26,187.20x = 36,129 × 15,576.56
  4. Step 4: Simplify right side
    26,187.20x = 562,765,536.24
  5. Step 5: Solve for x
    x = 562,765,536.24/26,187.20
  6. Step 6: Final answer
    x = 21,490.10

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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.