Home / 17,946.72-24,775.20-12,311.28

Finding the Fourth Proportional to 17,946.72, 24,775.20 and 12,311.28

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Solution

The fourth proportional to 17,946.72, 24,775.20 and 12,311.28 is: 16,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,946.72 : 24,775.20 = 12,311.28 : x
  2. Step 2: Convert to fraction form
    17,946.72/24,775.20 = 12,311.28/x
  3. Step 3: Cross multiply
    17,946.72x = 24,775.20 × 12,311.28
  4. Step 4: Simplify right side
    17,946.72x = 305,014,424.26
  5. Step 5: Solve for x
    x = 305,014,424.26/17,946.72
  6. Step 6: Final answer
    x = 16,995.55

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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.