Home / 38,633.64-53,310-21,635.52

Finding the Fourth Proportional to 38,633.64, 53,310 and 21,635.52

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Solution

The fourth proportional to 38,633.64, 53,310 and 21,635.52 is: 29,854.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,633.64 : 53,310 = 21,635.52 : x
  2. Step 2: Convert to fraction form
    38,633.64/53,310 = 21,635.52/x
  3. Step 3: Cross multiply
    38,633.64x = 53,310 × 21,635.52
  4. Step 4: Simplify right side
    38,633.64x = 1,153,389,571.20
  5. Step 5: Solve for x
    x = 1,153,389,571.20/38,633.64
  6. Step 6: Final answer
    x = 29,854.54

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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.