Home / 21,626.73-29,842.56-12,672.45

Finding the Fourth Proportional to 21,626.73, 29,842.56 and 12,672.45

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Solution

The fourth proportional to 21,626.73, 29,842.56 and 12,672.45 is: 17,486.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,626.73 : 29,842.56 = 12,672.45 : x
  2. Step 2: Convert to fraction form
    21,626.73/29,842.56 = 12,672.45/x
  3. Step 3: Cross multiply
    21,626.73x = 29,842.56 × 12,672.45
  4. Step 4: Simplify right side
    21,626.73x = 378,178,349.47
  5. Step 5: Solve for x
    x = 378,178,349.47/21,626.73
  6. Step 6: Final answer
    x = 17,486.62

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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.