Home / 31,372-47,066.96-15,581.84

Finding the Fourth Proportional to 31,372, 47,066.96 and 15,581.84

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Solution

The fourth proportional to 31,372, 47,066.96 and 15,581.84 is: 23,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372 : 47,066.96 = 15,581.84 : x
  2. Step 2: Convert to fraction form
    31,372/47,066.96 = 15,581.84/x
  3. Step 3: Cross multiply
    31,372x = 47,066.96 × 15,581.84
  4. Step 4: Simplify right side
    31,372x = 733,389,840.01
  5. Step 5: Solve for x
    x = 733,389,840.01/31,372
  6. Step 6: Final answer
    x = 23,377.21

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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.