Home / 47,238-65,215.40-31,344.24

Finding the Fourth Proportional to 47,238, 65,215.40 and 31,344.24

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Solution

The fourth proportional to 47,238, 65,215.40 and 31,344.24 is: 43,272.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,238 : 65,215.40 = 31,344.24 : x
  2. Step 2: Convert to fraction form
    47,238/65,215.40 = 31,344.24/x
  3. Step 3: Cross multiply
    47,238x = 65,215.40 × 31,344.24
  4. Step 4: Simplify right side
    47,238x = 2,044,127,149.30
  5. Step 5: Solve for x
    x = 2,044,127,149.30/47,238
  6. Step 6: Final answer
    x = 43,272.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.