Home / 20,841.67-28,762.23-11,410.30

Finding the Fourth Proportional to 20,841.67, 28,762.23 and 11,410.30

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Solution

The fourth proportional to 20,841.67, 28,762.23 and 11,410.30 is: 15,746.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.67 : 28,762.23 = 11,410.30 : x
  2. Step 2: Convert to fraction form
    20,841.67/28,762.23 = 11,410.30/x
  3. Step 3: Cross multiply
    20,841.67x = 28,762.23 × 11,410.30
  4. Step 4: Simplify right side
    20,841.67x = 328,185,672.97
  5. Step 5: Solve for x
    x = 328,185,672.97/20,841.67
  6. Step 6: Final answer
    x = 15,746.61

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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.