Home / 38,512.85-53,146.75-21,517.22

Finding the Fourth Proportional to 38,512.85, 53,146.75 and 21,517.22

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Solution

The fourth proportional to 38,512.85, 53,146.75 and 21,517.22 is: 29,693.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,512.85 : 53,146.75 = 21,517.22 : x
  2. Step 2: Convert to fraction form
    38,512.85/53,146.75 = 21,517.22/x
  3. Step 3: Cross multiply
    38,512.85x = 53,146.75 × 21,517.22
  4. Step 4: Simplify right side
    38,512.85x = 1,143,570,312.04
  5. Step 5: Solve for x
    x = 1,143,570,312.04/38,512.85
  6. Step 6: Final answer
    x = 29,693.21

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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.