Home / 38,898.55-53,679.49-21,904.47

Finding the Fourth Proportional to 38,898.55, 53,679.49 and 21,904.47

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Solution

The fourth proportional to 38,898.55, 53,679.49 and 21,904.47 is: 30,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,898.55 : 53,679.49 = 21,904.47 : x
  2. Step 2: Convert to fraction form
    38,898.55/53,679.49 = 21,904.47/x
  3. Step 3: Cross multiply
    38,898.55x = 53,679.49 × 21,904.47
  4. Step 4: Simplify right side
    38,898.55x = 1,175,820,778.44
  5. Step 5: Solve for x
    x = 1,175,820,778.44/38,898.55
  6. Step 6: Final answer
    x = 30,227.88

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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.