Home / 20,727.60-28,603.98-11,296.08

Finding the Fourth Proportional to 20,727.60, 28,603.98 and 11,296.08

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Solution

The fourth proportional to 20,727.60, 28,603.98 and 11,296.08 is: 15,588.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.60 : 28,603.98 = 11,296.08 : x
  2. Step 2: Convert to fraction form
    20,727.60/28,603.98 = 11,296.08/x
  3. Step 3: Cross multiply
    20,727.60x = 28,603.98 × 11,296.08
  4. Step 4: Simplify right side
    20,727.60x = 323,112,846.40
  5. Step 5: Solve for x
    x = 323,112,846.40/20,727.60
  6. Step 6: Final answer
    x = 15,588.53

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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.