Home / 21,214.60-29,262.70-13,034.62

Finding the Fourth Proportional to 21,214.60, 29,262.70 and 13,034.62

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Solution

The fourth proportional to 21,214.60, 29,262.70 and 13,034.62 is: 17,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.60 : 29,262.70 = 13,034.62 : x
  2. Step 2: Convert to fraction form
    21,214.60/29,262.70 = 13,034.62/x
  3. Step 3: Cross multiply
    21,214.60x = 29,262.70 × 13,034.62
  4. Step 4: Simplify right side
    21,214.60x = 381,428,174.67
  5. Step 5: Solve for x
    x = 381,428,174.67/21,214.60
  6. Step 6: Final answer
    x = 17,979.51

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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.