Home / 28,790.62-39,730.96-16,043.92

Finding the Fourth Proportional to 28,790.62, 39,730.96 and 16,043.92

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Solution

The fourth proportional to 28,790.62, 39,730.96 and 16,043.92 is: 22,140.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.62 : 39,730.96 = 16,043.92 : x
  2. Step 2: Convert to fraction form
    28,790.62/39,730.96 = 16,043.92/x
  3. Step 3: Cross multiply
    28,790.62x = 39,730.96 × 16,043.92
  4. Step 4: Simplify right side
    28,790.62x = 637,440,343.76
  5. Step 5: Solve for x
    x = 637,440,343.76/28,790.62
  6. Step 6: Final answer
    x = 22,140.56

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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.