Home / 20,074.77-27,703.40-11,122.41

Finding the Fourth Proportional to 20,074.77, 27,703.40 and 11,122.41

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Solution

The fourth proportional to 20,074.77, 27,703.40 and 11,122.41 is: 15,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.77 : 27,703.40 = 11,122.41 : x
  2. Step 2: Convert to fraction form
    20,074.77/27,703.40 = 11,122.41/x
  3. Step 3: Cross multiply
    20,074.77x = 27,703.40 × 11,122.41
  4. Step 4: Simplify right side
    20,074.77x = 308,128,573.19
  5. Step 5: Solve for x
    x = 308,128,573.19/20,074.77
  6. Step 6: Final answer
    x = 15,349.05

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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.