Home / 38,330.96-52,896.60-21,335.12

Finding the Fourth Proportional to 38,330.96, 52,896.60 and 21,335.12

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Solution

The fourth proportional to 38,330.96, 52,896.60 and 21,335.12 is: 29,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,330.96 : 52,896.60 = 21,335.12 : x
  2. Step 2: Convert to fraction form
    38,330.96/52,896.60 = 21,335.12/x
  3. Step 3: Cross multiply
    38,330.96x = 52,896.60 × 21,335.12
  4. Step 4: Simplify right side
    38,330.96x = 1,128,555,308.59
  5. Step 5: Solve for x
    x = 1,128,555,308.59/38,330.96
  6. Step 6: Final answer
    x = 29,442.40

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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.