Home / 20,655.64-28,504.69-11,703.13

Finding the Fourth Proportional to 20,655.64, 28,504.69 and 11,703.13

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Solution

The fourth proportional to 20,655.64, 28,504.69 and 11,703.13 is: 16,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.64 : 28,504.69 = 11,703.13 : x
  2. Step 2: Convert to fraction form
    20,655.64/28,504.69 = 11,703.13/x
  3. Step 3: Cross multiply
    20,655.64x = 28,504.69 × 11,703.13
  4. Step 4: Simplify right side
    20,655.64x = 333,594,092.68
  5. Step 5: Solve for x
    x = 333,594,092.68/20,655.64
  6. Step 6: Final answer
    x = 16,150.27

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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.