Home / 20,478.75-28,260.33-11,526.24

Finding the Fourth Proportional to 20,478.75, 28,260.33 and 11,526.24

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Solution

The fourth proportional to 20,478.75, 28,260.33 and 11,526.24 is: 15,906.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478.75 : 28,260.33 = 11,526.24 : x
  2. Step 2: Convert to fraction form
    20,478.75/28,260.33 = 11,526.24/x
  3. Step 3: Cross multiply
    20,478.75x = 28,260.33 × 11,526.24
  4. Step 4: Simplify right side
    20,478.75x = 325,735,346.06
  5. Step 5: Solve for x
    x = 325,735,346.06/20,478.75
  6. Step 6: Final answer
    x = 15,906.02

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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.