Home / 23,838.72-32,780.79-20,689.44

Finding the Fourth Proportional to 23,838.72, 32,780.79 and 20,689.44

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Solution

The fourth proportional to 23,838.72, 32,780.79 and 20,689.44 is: 28,450.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,838.72 : 32,780.79 = 20,689.44 : x
  2. Step 2: Convert to fraction form
    23,838.72/32,780.79 = 20,689.44/x
  3. Step 3: Cross multiply
    23,838.72x = 32,780.79 × 20,689.44
  4. Step 4: Simplify right side
    23,838.72x = 678,216,187.86
  5. Step 5: Solve for x
    x = 678,216,187.86/23,838.72
  6. Step 6: Final answer
    x = 28,450.19

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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.