Home / 30,575.70-42,196.14-17,151.21

Finding the Fourth Proportional to 30,575.70, 42,196.14 and 17,151.21

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Solution

The fourth proportional to 30,575.70, 42,196.14 and 17,151.21 is: 23,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575.70 : 42,196.14 = 17,151.21 : x
  2. Step 2: Convert to fraction form
    30,575.70/42,196.14 = 17,151.21/x
  3. Step 3: Cross multiply
    30,575.70x = 42,196.14 × 17,151.21
  4. Step 4: Simplify right side
    30,575.70x = 723,714,858.33
  5. Step 5: Solve for x
    x = 723,714,858.33/30,575.70
  6. Step 6: Final answer
    x = 23,669.61

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Half scale
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Double scale
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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.