Home / 47,421.03-71,150.67-21,107.78

Finding the Fourth Proportional to 47,421.03, 71,150.67 and 21,107.78

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Solution

The fourth proportional to 47,421.03, 71,150.67 and 21,107.78 is: 31,670.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,421.03 : 71,150.67 = 21,107.78 : x
  2. Step 2: Convert to fraction form
    47,421.03/71,150.67 = 21,107.78/x
  3. Step 3: Cross multiply
    47,421.03x = 71,150.67 × 21,107.78
  4. Step 4: Simplify right side
    47,421.03x = 1,501,832,333.46
  5. Step 5: Solve for x
    x = 1,501,832,333.46/47,421.03
  6. Step 6: Final answer
    x = 31,670.18

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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.