Home / 28,638.92-42,964.30-11,108.68

Finding the Fourth Proportional to 28,638.92, 42,964.30 and 11,108.68

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Solution

The fourth proportional to 28,638.92, 42,964.30 and 11,108.68 is: 16,665.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,638.92 : 42,964.30 = 11,108.68 : x
  2. Step 2: Convert to fraction form
    28,638.92/42,964.30 = 11,108.68/x
  3. Step 3: Cross multiply
    28,638.92x = 42,964.30 × 11,108.68
  4. Step 4: Simplify right side
    28,638.92x = 477,276,660.12
  5. Step 5: Solve for x
    x = 477,276,660.12/28,638.92
  6. Step 6: Final answer
    x = 16,665.32

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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.