Home / 38,284-52,831.40-21,517.04

Finding the Fourth Proportional to 38,284, 52,831.40 and 21,517.04

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Solution

The fourth proportional to 38,284, 52,831.40 and 21,517.04 is: 29,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,284 : 52,831.40 = 21,517.04 : x
  2. Step 2: Convert to fraction form
    38,284/52,831.40 = 21,517.04/x
  3. Step 3: Cross multiply
    38,284x = 52,831.40 × 21,517.04
  4. Step 4: Simplify right side
    38,284x = 1,136,775,347.06
  5. Step 5: Solve for x
    x = 1,136,775,347.06/38,284
  6. Step 6: Final answer
    x = 29,693.22

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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.