Home / 20,841.74-28,761.38-11,410.32

Finding the Fourth Proportional to 20,841.74, 28,761.38 and 11,410.32

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Solution

The fourth proportional to 20,841.74, 28,761.38 and 11,410.32 is: 15,746.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.74 : 28,761.38 = 11,410.32 : x
  2. Step 2: Convert to fraction form
    20,841.74/28,761.38 = 11,410.32/x
  3. Step 3: Cross multiply
    20,841.74x = 28,761.38 × 11,410.32
  4. Step 4: Simplify right side
    20,841.74x = 328,176,549.44
  5. Step 5: Solve for x
    x = 328,176,549.44/20,841.74
  6. Step 6: Final answer
    x = 15,746.12

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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.