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Finding the Fourth Proportional to 38,160.19, 52,661.03 and 21,393.19

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Solution

The fourth proportional to 38,160.19, 52,661.03 and 21,393.19 is: 29,522.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,160.19 : 52,661.03 = 21,393.19 : x
  2. Step 2: Convert to fraction form
    38,160.19/52,661.03 = 21,393.19/x
  3. Step 3: Cross multiply
    38,160.19x = 52,661.03 × 21,393.19
  4. Step 4: Simplify right side
    38,160.19x = 1,126,587,420.39
  5. Step 5: Solve for x
    x = 1,126,587,420.39/38,160.19
  6. Step 6: Final answer
    x = 29,522.58

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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.