Home / 18,576.32-25,669.20-13,531.76

Finding the Fourth Proportional to 18,576.32, 25,669.20 and 13,531.76

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Solution

The fourth proportional to 18,576.32, 25,669.20 and 13,531.76 is: 18,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.32 : 25,669.20 = 13,531.76 : x
  2. Step 2: Convert to fraction form
    18,576.32/25,669.20 = 13,531.76/x
  3. Step 3: Cross multiply
    18,576.32x = 25,669.20 × 13,531.76
  4. Step 4: Simplify right side
    18,576.32x = 347,349,453.79
  5. Step 5: Solve for x
    x = 347,349,453.79/18,576.32
  6. Step 6: Final answer
    x = 18,698.51

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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.