Home / 30,572.67-42,190.23-17,143.92

Finding the Fourth Proportional to 30,572.67, 42,190.23 and 17,143.92

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Solution

The fourth proportional to 30,572.67, 42,190.23 and 17,143.92 is: 23,658.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,572.67 : 42,190.23 = 17,143.92 : x
  2. Step 2: Convert to fraction form
    30,572.67/42,190.23 = 17,143.92/x
  3. Step 3: Cross multiply
    30,572.67x = 42,190.23 × 17,143.92
  4. Step 4: Simplify right side
    30,572.67x = 723,305,927.90
  5. Step 5: Solve for x
    x = 723,305,927.90/30,572.67
  6. Step 6: Final answer
    x = 23,658.58

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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.