Home / 19,533.12-29,287.87-7,672.70

Finding the Fourth Proportional to 19,533.12, 29,287.87 and 7,672.70

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Solution

The fourth proportional to 19,533.12, 29,287.87 and 7,672.70 is: 11,504.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,533.12 : 29,287.87 = 7,672.70 : x
  2. Step 2: Convert to fraction form
    19,533.12/29,287.87 = 7,672.70/x
  3. Step 3: Cross multiply
    19,533.12x = 29,287.87 × 7,672.70
  4. Step 4: Simplify right side
    19,533.12x = 224,716,966.93
  5. Step 5: Solve for x
    x = 224,716,966.93/19,533.12
  6. Step 6: Final answer
    x = 11,504.41

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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.