Home / 22,421.37-33,631.75-7,640.59

Finding the Fourth Proportional to 22,421.37, 33,631.75 and 7,640.59

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Solution

The fourth proportional to 22,421.37, 33,631.75 and 7,640.59 is: 11,460.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,421.37 : 33,631.75 = 7,640.59 : x
  2. Step 2: Convert to fraction form
    22,421.37/33,631.75 = 7,640.59/x
  3. Step 3: Cross multiply
    22,421.37x = 33,631.75 × 7,640.59
  4. Step 4: Simplify right side
    22,421.37x = 256,966,412.73
  5. Step 5: Solve for x
    x = 256,966,412.73/22,421.37
  6. Step 6: Final answer
    x = 11,460.78

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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.