Home / 47,890.81-71,852.61-18,317.10

Finding the Fourth Proportional to 47,890.81, 71,852.61 and 18,317.10

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Solution

The fourth proportional to 47,890.81, 71,852.61 and 18,317.10 is: 27,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,890.81 : 71,852.61 = 18,317.10 : x
  2. Step 2: Convert to fraction form
    47,890.81/71,852.61 = 18,317.10/x
  3. Step 3: Cross multiply
    47,890.81x = 71,852.61 × 18,317.10
  4. Step 4: Simplify right side
    47,890.81x = 1,316,131,780.77
  5. Step 5: Solve for x
    x = 1,316,131,780.77/47,890.81
  6. Step 6: Final answer
    x = 27,481.93

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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.