Home / 30,586.28-42,208.68-17,160.92

Finding the Fourth Proportional to 30,586.28, 42,208.68 and 17,160.92

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Solution

The fourth proportional to 30,586.28, 42,208.68 and 17,160.92 is: 23,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,586.28 : 42,208.68 = 17,160.92 : x
  2. Step 2: Convert to fraction form
    30,586.28/42,208.68 = 17,160.92/x
  3. Step 3: Cross multiply
    30,586.28x = 42,208.68 × 17,160.92
  4. Step 4: Simplify right side
    30,586.28x = 724,339,780.79
  5. Step 5: Solve for x
    x = 724,339,780.79/30,586.28
  6. Step 6: Final answer
    x = 23,681.85

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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.