Home / 28,236.98-38,940.30-16,904.67

Finding the Fourth Proportional to 28,236.98, 38,940.30 and 16,904.67

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Solution

The fourth proportional to 28,236.98, 38,940.30 and 16,904.67 is: 23,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.98 : 38,940.30 = 16,904.67 : x
  2. Step 2: Convert to fraction form
    28,236.98/38,940.30 = 16,904.67/x
  3. Step 3: Cross multiply
    28,236.98x = 38,940.30 × 16,904.67
  4. Step 4: Simplify right side
    28,236.98x = 658,272,921.20
  5. Step 5: Solve for x
    x = 658,272,921.20/28,236.98
  6. Step 6: Final answer
    x = 23,312.44

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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.