Home / 20,730.93-28,608.55-11,299.29

Finding the Fourth Proportional to 20,730.93, 28,608.55 and 11,299.29

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Solution

The fourth proportional to 20,730.93, 28,608.55 and 11,299.29 is: 15,592.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730.93 : 28,608.55 = 11,299.29 : x
  2. Step 2: Convert to fraction form
    20,730.93/28,608.55 = 11,299.29/x
  3. Step 3: Cross multiply
    20,730.93x = 28,608.55 × 11,299.29
  4. Step 4: Simplify right side
    20,730.93x = 323,256,302.93
  5. Step 5: Solve for x
    x = 323,256,302.93/20,730.93
  6. Step 6: Final answer
    x = 15,592.95

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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.