Home / 15,615.66-23,423.24-3,928.80

Finding the Fourth Proportional to 15,615.66, 23,423.24 and 3,928.80

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Solution

The fourth proportional to 15,615.66, 23,423.24 and 3,928.80 is: 5,893.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.66 : 23,423.24 = 3,928.80 : x
  2. Step 2: Convert to fraction form
    15,615.66/23,423.24 = 3,928.80/x
  3. Step 3: Cross multiply
    15,615.66x = 23,423.24 × 3,928.80
  4. Step 4: Simplify right side
    15,615.66x = 92,025,225.31
  5. Step 5: Solve for x
    x = 92,025,225.31/15,615.66
  6. Step 6: Final answer
    x = 5,893.14

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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.