Home / 22,308.60-30,795.64-15,620.45

Finding the Fourth Proportional to 22,308.60, 30,795.64 and 15,620.45

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Solution

The fourth proportional to 22,308.60, 30,795.64 and 15,620.45 is: 21,563.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,308.60 : 30,795.64 = 15,620.45 : x
  2. Step 2: Convert to fraction form
    22,308.60/30,795.64 = 15,620.45/x
  3. Step 3: Cross multiply
    22,308.60x = 30,795.64 × 15,620.45
  4. Step 4: Simplify right side
    22,308.60x = 481,041,754.84
  5. Step 5: Solve for x
    x = 481,041,754.84/22,308.60
  6. Step 6: Final answer
    x = 21,563.06

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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.