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Finding the Fourth Proportional to 47,491.58, 71,243.40 and 17,507.78

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Solution

The fourth proportional to 47,491.58, 71,243.40 and 17,507.78 is: 26,263.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,491.58 : 71,243.40 = 17,507.78 : x
  2. Step 2: Convert to fraction form
    47,491.58/71,243.40 = 17,507.78/x
  3. Step 3: Cross multiply
    47,491.58x = 71,243.40 × 17,507.78
  4. Step 4: Simplify right side
    47,491.58x = 1,247,313,773.65
  5. Step 5: Solve for x
    x = 1,247,313,773.65/47,491.58
  6. Step 6: Final answer
    x = 26,263.89

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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.