Home / 42,669.82-64,004.71-11,505.07

Finding the Fourth Proportional to 42,669.82, 64,004.71 and 11,505.07

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Solution

The fourth proportional to 42,669.82, 64,004.71 and 11,505.07 is: 17,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,669.82 : 64,004.71 = 11,505.07 : x
  2. Step 2: Convert to fraction form
    42,669.82/64,004.71 = 11,505.07/x
  3. Step 3: Cross multiply
    42,669.82x = 64,004.71 × 11,505.07
  4. Step 4: Simplify right side
    42,669.82x = 736,378,668.88
  5. Step 5: Solve for x
    x = 736,378,668.88/42,669.82
  6. Step 6: Final answer
    x = 17,257.60

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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.