Home / 20,335.74-28,053.99-11,946.30

Finding the Fourth Proportional to 20,335.74, 28,053.99 and 11,946.30

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Solution

The fourth proportional to 20,335.74, 28,053.99 and 11,946.30 is: 16,480.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.74 : 28,053.99 = 11,946.30 : x
  2. Step 2: Convert to fraction form
    20,335.74/28,053.99 = 11,946.30/x
  3. Step 3: Cross multiply
    20,335.74x = 28,053.99 × 11,946.30
  4. Step 4: Simplify right side
    20,335.74x = 335,141,380.74
  5. Step 5: Solve for x
    x = 335,141,380.74/20,335.74
  6. Step 6: Final answer
    x = 16,480.41

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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.