Home / 38,682.27-53,376.84-21,685.14

Finding the Fourth Proportional to 38,682.27, 53,376.84 and 21,685.14

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Solution

The fourth proportional to 38,682.27, 53,376.84 and 21,685.14 is: 29,922.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,682.27 : 53,376.84 = 21,685.14 : x
  2. Step 2: Convert to fraction form
    38,682.27/53,376.84 = 21,685.14/x
  3. Step 3: Cross multiply
    38,682.27x = 53,376.84 × 21,685.14
  4. Step 4: Simplify right side
    38,682.27x = 1,157,484,248.16
  5. Step 5: Solve for x
    x = 1,157,484,248.16/38,682.27
  6. Step 6: Final answer
    x = 29,922.86

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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.