Home / 29,007.21-39,955.08-20,494.55

Finding the Fourth Proportional to 29,007.21, 39,955.08 and 20,494.55

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Solution

The fourth proportional to 29,007.21, 39,955.08 and 20,494.55 is: 28,229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,007.21 : 39,955.08 = 20,494.55 : x
  2. Step 2: Convert to fraction form
    29,007.21/39,955.08 = 20,494.55/x
  3. Step 3: Cross multiply
    29,007.21x = 39,955.08 × 20,494.55
  4. Step 4: Simplify right side
    29,007.21x = 818,861,484.70
  5. Step 5: Solve for x
    x = 818,861,484.70/29,007.21
  6. Step 6: Final answer
    x = 28,229.58

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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.