Home / 38,629.71-53,310.18-21,633.91

Finding the Fourth Proportional to 38,629.71, 53,310.18 and 21,633.91

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Solution

The fourth proportional to 38,629.71, 53,310.18 and 21,633.91 is: 29,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,629.71 : 53,310.18 = 21,633.91 : x
  2. Step 2: Convert to fraction form
    38,629.71/53,310.18 = 21,633.91/x
  3. Step 3: Cross multiply
    38,629.71x = 53,310.18 × 21,633.91
  4. Step 4: Simplify right side
    38,629.71x = 1,153,307,551.45
  5. Step 5: Solve for x
    x = 1,153,307,551.45/38,629.71
  6. Step 6: Final answer
    x = 29,855.45

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1.5x scale

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.