Home / 38,495.43-53,122.11-21,499.38

Finding the Fourth Proportional to 38,495.43, 53,122.11 and 21,499.38

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Solution

The fourth proportional to 38,495.43, 53,122.11 and 21,499.38 is: 29,668.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,495.43 : 53,122.11 = 21,499.38 : x
  2. Step 2: Convert to fraction form
    38,495.43/53,122.11 = 21,499.38/x
  3. Step 3: Cross multiply
    38,495.43x = 53,122.11 × 21,499.38
  4. Step 4: Simplify right side
    38,495.43x = 1,142,092,429.29
  5. Step 5: Solve for x
    x = 1,142,092,429.29/38,495.43
  6. Step 6: Final answer
    x = 29,668.26

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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.