Home / 38,188-52,699.44-21,421.04

Finding the Fourth Proportional to 38,188, 52,699.44 and 21,421.04

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Solution

The fourth proportional to 38,188, 52,699.44 and 21,421.04 is: 29,561.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,188 : 52,699.44 = 21,421.04 : x
  2. Step 2: Convert to fraction form
    38,188/52,699.44 = 21,421.04/x
  3. Step 3: Cross multiply
    38,188x = 52,699.44 × 21,421.04
  4. Step 4: Simplify right side
    38,188x = 1,128,876,812.22
  5. Step 5: Solve for x
    x = 1,128,876,812.22/38,188
  6. Step 6: Final answer
    x = 29,561.04

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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.