Home / 28,384.10-42,576.16-11,725.82

Finding the Fourth Proportional to 28,384.10, 42,576.16 and 11,725.82

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Solution

The fourth proportional to 28,384.10, 42,576.16 and 11,725.82 is: 17,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.10 : 42,576.16 = 11,725.82 : x
  2. Step 2: Convert to fraction form
    28,384.10/42,576.16 = 11,725.82/x
  3. Step 3: Cross multiply
    28,384.10x = 42,576.16 × 11,725.82
  4. Step 4: Simplify right side
    28,384.10x = 499,240,388.45
  5. Step 5: Solve for x
    x = 499,240,388.45/28,384.10
  6. Step 6: Final answer
    x = 17,588.73

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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.