Home / 29,321.34-43,909.08-20,515.02

Finding the Fourth Proportional to 29,321.34, 43,909.08 and 20,515.02

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Solution

The fourth proportional to 29,321.34, 43,909.08 and 20,515.02 is: 30,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,321.34 : 43,909.08 = 20,515.02 : x
  2. Step 2: Convert to fraction form
    29,321.34/43,909.08 = 20,515.02/x
  3. Step 3: Cross multiply
    29,321.34x = 43,909.08 × 20,515.02
  4. Step 4: Simplify right side
    29,321.34x = 900,795,654.38
  5. Step 5: Solve for x
    x = 900,795,654.38/29,321.34
  6. Step 6: Final answer
    x = 30,721.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.