Home / 42,794.64-64,197.44-13,215.48

Finding the Fourth Proportional to 42,794.64, 64,197.44 and 13,215.48

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Solution

The fourth proportional to 42,794.64, 64,197.44 and 13,215.48 is: 19,824.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,794.64 : 64,197.44 = 13,215.48 : x
  2. Step 2: Convert to fraction form
    42,794.64/64,197.44 = 13,215.48/x
  3. Step 3: Cross multiply
    42,794.64x = 64,197.44 × 13,215.48
  4. Step 4: Simplify right side
    42,794.64x = 848,399,984.37
  5. Step 5: Solve for x
    x = 848,399,984.37/42,794.64
  6. Step 6: Final answer
    x = 19,824.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.