Home / 38,987.43-53,802.66-21,082.44

Finding the Fourth Proportional to 38,987.43, 53,802.66 and 21,082.44

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Solution

The fourth proportional to 38,987.43, 53,802.66 and 21,082.44 is: 29,093.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,987.43 : 53,802.66 = 21,082.44 : x
  2. Step 2: Convert to fraction form
    38,987.43/53,802.66 = 21,082.44/x
  3. Step 3: Cross multiply
    38,987.43x = 53,802.66 × 21,082.44
  4. Step 4: Simplify right side
    38,987.43x = 1,134,291,405.13
  5. Step 5: Solve for x
    x = 1,134,291,405.13/38,987.43
  6. Step 6: Final answer
    x = 29,093.77

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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.