Home / 47,174.56-70,737.45-13,890.31

Finding the Fourth Proportional to 47,174.56, 70,737.45 and 13,890.31

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Solution

The fourth proportional to 47,174.56, 70,737.45 and 13,890.31 is: 20,828.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,174.56 : 70,737.45 = 13,890.31 : x
  2. Step 2: Convert to fraction form
    47,174.56/70,737.45 = 13,890.31/x
  3. Step 3: Cross multiply
    47,174.56x = 70,737.45 × 13,890.31
  4. Step 4: Simplify right side
    47,174.56x = 982,565,109.11
  5. Step 5: Solve for x
    x = 982,565,109.11/47,174.56
  6. Step 6: Final answer
    x = 20,828.28

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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.