Home / 38,835.55-53,592.55-21,839.79

Finding the Fourth Proportional to 38,835.55, 53,592.55 and 21,839.79

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Solution

The fourth proportional to 38,835.55, 53,592.55 and 21,839.79 is: 30,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,835.55 : 53,592.55 = 21,839.79 : x
  2. Step 2: Convert to fraction form
    38,835.55/53,592.55 = 21,839.79/x
  3. Step 3: Cross multiply
    38,835.55x = 53,592.55 × 21,839.79
  4. Step 4: Simplify right side
    38,835.55x = 1,170,450,064.86
  5. Step 5: Solve for x
    x = 1,170,450,064.86/38,835.55
  6. Step 6: Final answer
    x = 30,138.62

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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.