Home / 30,572.84-42,190.02-17,144.08

Finding the Fourth Proportional to 30,572.84, 42,190.02 and 17,144.08

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Solution

The fourth proportional to 30,572.84, 42,190.02 and 17,144.08 is: 23,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,572.84 : 42,190.02 = 17,144.08 : x
  2. Step 2: Convert to fraction form
    30,572.84/42,190.02 = 17,144.08/x
  3. Step 3: Cross multiply
    30,572.84x = 42,190.02 × 17,144.08
  4. Step 4: Simplify right side
    30,572.84x = 723,309,078.08
  5. Step 5: Solve for x
    x = 723,309,078.08/30,572.84
  6. Step 6: Final answer
    x = 23,658.55

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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.