Home / 28,730.76-39,648.94-15,984.96

Finding the Fourth Proportional to 28,730.76, 39,648.94 and 15,984.96

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Solution

The fourth proportional to 28,730.76, 39,648.94 and 15,984.96 is: 22,059.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.76 : 39,648.94 = 15,984.96 : x
  2. Step 2: Convert to fraction form
    28,730.76/39,648.94 = 15,984.96/x
  3. Step 3: Cross multiply
    28,730.76x = 39,648.94 × 15,984.96
  4. Step 4: Simplify right side
    28,730.76x = 633,786,719.94
  5. Step 5: Solve for x
    x = 633,786,719.94/28,730.76
  6. Step 6: Final answer
    x = 22,059.52

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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.