Home / 22,024.80-30,400.16-13,636.64

Finding the Fourth Proportional to 22,024.80, 30,400.16 and 13,636.64

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Solution

The fourth proportional to 22,024.80, 30,400.16 and 13,636.64 is: 18,822.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,024.80 : 30,400.16 = 13,636.64 : x
  2. Step 2: Convert to fraction form
    22,024.80/30,400.16 = 13,636.64/x
  3. Step 3: Cross multiply
    22,024.80x = 30,400.16 × 13,636.64
  4. Step 4: Simplify right side
    22,024.80x = 414,556,037.86
  5. Step 5: Solve for x
    x = 414,556,037.86/22,024.80
  6. Step 6: Final answer
    x = 18,822.24

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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.