Home / 20,724.70-28,600.08-11,293.26

Finding the Fourth Proportional to 20,724.70, 28,600.08 and 11,293.26

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Solution

The fourth proportional to 20,724.70, 28,600.08 and 11,293.26 is: 15,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.70 : 28,600.08 = 11,293.26 : x
  2. Step 2: Convert to fraction form
    20,724.70/28,600.08 = 11,293.26/x
  3. Step 3: Cross multiply
    20,724.70x = 28,600.08 × 11,293.26
  4. Step 4: Simplify right side
    20,724.70x = 322,988,139.46
  5. Step 5: Solve for x
    x = 322,988,139.46/20,724.70
  6. Step 6: Final answer
    x = 15,584.70

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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.