Home / 38,648.85-58,236.52-31,782.66

Finding the Fourth Proportional to 38,648.85, 58,236.52 and 31,782.66

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Solution

The fourth proportional to 38,648.85, 58,236.52 and 31,782.66 is: 47,890.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,648.85 : 58,236.52 = 31,782.66 : x
  2. Step 2: Convert to fraction form
    38,648.85/58,236.52 = 31,782.66/x
  3. Step 3: Cross multiply
    38,648.85x = 58,236.52 × 31,782.66
  4. Step 4: Simplify right side
    38,648.85x = 1,850,911,223.56
  5. Step 5: Solve for x
    x = 1,850,911,223.56/38,648.85
  6. Step 6: Final answer
    x = 47,890.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.