Home / 38,717.43-53,429.82-21,489.62

Finding the Fourth Proportional to 38,717.43, 53,429.82 and 21,489.62

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Solution

The fourth proportional to 38,717.43, 53,429.82 and 21,489.62 is: 29,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,717.43 : 53,429.82 = 21,489.62 : x
  2. Step 2: Convert to fraction form
    38,717.43/53,429.82 = 21,489.62/x
  3. Step 3: Cross multiply
    38,717.43x = 53,429.82 × 21,489.62
  4. Step 4: Simplify right side
    38,717.43x = 1,148,186,261.32
  5. Step 5: Solve for x
    x = 1,148,186,261.32/38,717.43
  6. Step 6: Final answer
    x = 29,655.54

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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.