Home / 20,656.43-28,504.95-11,703.41

Finding the Fourth Proportional to 20,656.43, 28,504.95 and 11,703.41

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Solution

The fourth proportional to 20,656.43, 28,504.95 and 11,703.41 is: 16,150.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.43 : 28,504.95 = 11,703.41 : x
  2. Step 2: Convert to fraction form
    20,656.43/28,504.95 = 11,703.41/x
  3. Step 3: Cross multiply
    20,656.43x = 28,504.95 × 11,703.41
  4. Step 4: Simplify right side
    20,656.43x = 333,605,116.88
  5. Step 5: Solve for x
    x = 333,605,116.88/20,656.43
  6. Step 6: Final answer
    x = 16,150.18

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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.