Home / 43,174.53-64,744.79-20,981.34

Finding the Fourth Proportional to 43,174.53, 64,744.79 and 20,981.34

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Solution

The fourth proportional to 43,174.53, 64,744.79 and 20,981.34 is: 31,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,174.53 : 64,744.79 = 20,981.34 : x
  2. Step 2: Convert to fraction form
    43,174.53/64,744.79 = 20,981.34/x
  3. Step 3: Cross multiply
    43,174.53x = 64,744.79 × 20,981.34
  4. Step 4: Simplify right side
    43,174.53x = 1,358,432,347.31
  5. Step 5: Solve for x
    x = 1,358,432,347.31/43,174.53
  6. Step 6: Final answer
    x = 31,463.74

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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.