Home / 38,285.84-57,428.76-11,992.63

Finding the Fourth Proportional to 38,285.84, 57,428.76 and 11,992.63

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Solution

The fourth proportional to 38,285.84, 57,428.76 and 11,992.63 is: 17,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,285.84 : 57,428.76 = 11,992.63 : x
  2. Step 2: Convert to fraction form
    38,285.84/57,428.76 = 11,992.63/x
  3. Step 3: Cross multiply
    38,285.84x = 57,428.76 × 11,992.63
  4. Step 4: Simplify right side
    38,285.84x = 688,721,522.93
  5. Step 5: Solve for x
    x = 688,721,522.93/38,285.84
  6. Step 6: Final answer
    x = 17,988.94

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.