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Finding the Fourth Proportional to 38,342.92, 52,913.92 and 21,346.28

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Solution

The fourth proportional to 38,342.92, 52,913.92 and 21,346.28 is: 29,458.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,342.92 : 52,913.92 = 21,346.28 : x
  2. Step 2: Convert to fraction form
    38,342.92/52,913.92 = 21,346.28/x
  3. Step 3: Cross multiply
    38,342.92x = 52,913.92 × 21,346.28
  4. Step 4: Simplify right side
    38,342.92x = 1,129,515,352.22
  5. Step 5: Solve for x
    x = 1,129,515,352.22/38,342.92
  6. Step 6: Final answer
    x = 29,458.25

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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.