Home / 20,359.42-30,504.06-15,915.35

Finding the Fourth Proportional to 20,359.42, 30,504.06 and 15,915.35

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Solution

The fourth proportional to 20,359.42, 30,504.06 and 15,915.35 is: 23,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.42 : 30,504.06 = 15,915.35 : x
  2. Step 2: Convert to fraction form
    20,359.42/30,504.06 = 15,915.35/x
  3. Step 3: Cross multiply
    20,359.42x = 30,504.06 × 15,915.35
  4. Step 4: Simplify right side
    20,359.42x = 485,482,791.32
  5. Step 5: Solve for x
    x = 485,482,791.32/20,359.42
  6. Step 6: Final answer
    x = 23,845.62

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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.