Home / 38,516.73-53,152.10-21,521.12

Finding the Fourth Proportional to 38,516.73, 53,152.10 and 21,521.12

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Solution

The fourth proportional to 38,516.73, 53,152.10 and 21,521.12 is: 29,698.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,516.73 : 53,152.10 = 21,521.12 : x
  2. Step 2: Convert to fraction form
    38,516.73/53,152.10 = 21,521.12/x
  3. Step 3: Cross multiply
    38,516.73x = 53,152.10 × 21,521.12
  4. Step 4: Simplify right side
    38,516.73x = 1,143,892,504.44
  5. Step 5: Solve for x
    x = 1,143,892,504.44/38,516.73
  6. Step 6: Final answer
    x = 29,698.59

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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.