Home / 30,609.18-42,240.51-17,180.37

Finding the Fourth Proportional to 30,609.18, 42,240.51 and 17,180.37

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Solution

The fourth proportional to 30,609.18, 42,240.51 and 17,180.37 is: 23,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,609.18 : 42,240.51 = 17,180.37 : x
  2. Step 2: Convert to fraction form
    30,609.18/42,240.51 = 17,180.37/x
  3. Step 3: Cross multiply
    30,609.18x = 42,240.51 × 17,180.37
  4. Step 4: Simplify right side
    30,609.18x = 725,707,590.79
  5. Step 5: Solve for x
    x = 725,707,590.79/30,609.18
  6. Step 6: Final answer
    x = 23,708.82

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Half scale
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Double scale
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Similar ratio
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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.