Home / 15,615.47-23,423.14-3,928.70

Finding the Fourth Proportional to 15,615.47, 23,423.14 and 3,928.70

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Solution

The fourth proportional to 15,615.47, 23,423.14 and 3,928.70 is: 5,893.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.47 : 23,423.14 = 3,928.70 : x
  2. Step 2: Convert to fraction form
    15,615.47/23,423.14 = 3,928.70/x
  3. Step 3: Cross multiply
    15,615.47x = 23,423.14 × 3,928.70
  4. Step 4: Simplify right side
    15,615.47x = 92,022,363.18
  5. Step 5: Solve for x
    x = 92,022,363.18/15,615.47
  6. Step 6: Final answer
    x = 5,893.02

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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.