Home / 20,841.64-28,761.45-11,410.20

Finding the Fourth Proportional to 20,841.64, 28,761.45 and 11,410.20

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Solution

The fourth proportional to 20,841.64, 28,761.45 and 11,410.20 is: 15,746.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.64 : 28,761.45 = 11,410.20 : x
  2. Step 2: Convert to fraction form
    20,841.64/28,761.45 = 11,410.20/x
  3. Step 3: Cross multiply
    20,841.64x = 28,761.45 × 11,410.20
  4. Step 4: Simplify right side
    20,841.64x = 328,173,896.79
  5. Step 5: Solve for x
    x = 328,173,896.79/20,841.64
  6. Step 6: Final answer
    x = 15,746.07

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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.