Home / 20,852.48-28,776.20-11,292.12

Finding the Fourth Proportional to 20,852.48, 28,776.20 and 11,292.12

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Solution

The fourth proportional to 20,852.48, 28,776.20 and 11,292.12 is: 15,583.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.48 : 28,776.20 = 11,292.12 : x
  2. Step 2: Convert to fraction form
    20,852.48/28,776.20 = 11,292.12/x
  3. Step 3: Cross multiply
    20,852.48x = 28,776.20 × 11,292.12
  4. Step 4: Simplify right side
    20,852.48x = 324,944,247.08
  5. Step 5: Solve for x
    x = 324,944,247.08/20,852.48
  6. Step 6: Final answer
    x = 15,583.01

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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.