Home / 38,342.82-52,912.68-21,346.80

Finding the Fourth Proportional to 38,342.82, 52,912.68 and 21,346.80

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Solution

The fourth proportional to 38,342.82, 52,912.68 and 21,346.80 is: 29,458.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,342.82 : 52,912.68 = 21,346.80 : x
  2. Step 2: Convert to fraction form
    38,342.82/52,912.68 = 21,346.80/x
  3. Step 3: Cross multiply
    38,342.82x = 52,912.68 × 21,346.80
  4. Step 4: Simplify right side
    38,342.82x = 1,129,516,397.42
  5. Step 5: Solve for x
    x = 1,129,516,397.42/38,342.82
  6. Step 6: Final answer
    x = 29,458.35

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Double scale
Find fourth proportional to 38,343.82, 52,914.06 and 21,347.80
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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.