Home / 20,255.01-27,947.43-11,752.21

Finding the Fourth Proportional to 20,255.01, 27,947.43 and 11,752.21

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Solution

The fourth proportional to 20,255.01, 27,947.43 and 11,752.21 is: 16,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.01 : 27,947.43 = 11,752.21 : x
  2. Step 2: Convert to fraction form
    20,255.01/27,947.43 = 11,752.21/x
  3. Step 3: Cross multiply
    20,255.01x = 27,947.43 × 11,752.21
  4. Step 4: Simplify right side
    20,255.01x = 328,444,066.32
  5. Step 5: Solve for x
    x = 328,444,066.32/20,255.01
  6. Step 6: Final answer
    x = 16,215.45

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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.