Home / 38,109.79-52,591.55-21,342.79

Finding the Fourth Proportional to 38,109.79, 52,591.55 and 21,342.79

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Solution

The fourth proportional to 38,109.79, 52,591.55 and 21,342.79 is: 29,453.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,109.79 : 52,591.55 = 21,342.79 : x
  2. Step 2: Convert to fraction form
    38,109.79/52,591.55 = 21,342.79/x
  3. Step 3: Cross multiply
    38,109.79x = 52,591.55 × 21,342.79
  4. Step 4: Simplify right side
    38,109.79x = 1,122,450,407.42
  5. Step 5: Solve for x
    x = 1,122,450,407.42/38,109.79
  6. Step 6: Final answer
    x = 29,453.07

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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.