Home / 20,464.70-30,580.55-15,365.64

Finding the Fourth Proportional to 20,464.70, 30,580.55 and 15,365.64

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Solution

The fourth proportional to 20,464.70, 30,580.55 and 15,365.64 is: 22,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.70 : 30,580.55 = 15,365.64 : x
  2. Step 2: Convert to fraction form
    20,464.70/30,580.55 = 15,365.64/x
  3. Step 3: Cross multiply
    20,464.70x = 30,580.55 × 15,365.64
  4. Step 4: Simplify right side
    20,464.70x = 469,889,645.47
  5. Step 5: Solve for x
    x = 469,889,645.47/20,464.70
  6. Step 6: Final answer
    x = 22,960.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.